classify the following random variables as discrete or continuous

$X$ is a binomial random variable with parameters $n=5$, $p=0.5$. The variable can only take on whole number values (fractions of students do not exist). : The function f(x) = -x^4 + 3 does not have an absolute maximum. The tack is dropped and its landing position observed $15$ times. Classify the following as discrete or continuous random variables. -0.37 Let our experts help you. P: the number of building permitsissued each month in a certain city. The number of injuries occurring to children at a school. $X$ is the number of coins that match at least one other coin when four coins are tossed at once. The number of dropouts in a school per district Advertisement Loved by our community 491 people found it helpful The number of boys in a randomly selected three-child family. It is not possible to finish counting the time lengths of all movies. Circle the correct answer. Show that the probability that any such mixture will contain the blood of at least one diseased person, hence test positive, is about $0.18$. sample size (n)=25 standard deviation (s)=8mL Classify the following random variables as discrete or continuous: the number of automobile accidents per year in Virginia. $X$ is the number of black marbles in a sample of $5$ marbles drawn randomly and without replacement from a box that contains $25$ white marbles and $15$ black marbles. abbvie ceo richard gonzalez wife; how far is haddonfield, illinois from chicago Find the probability that the next litter will produce five to seven live pups. 8 \[\begin{array}{c|c c c } x &100 &101 &102 \\ \hline P(x) &0.01 &0.96 &0.03 \\ \end{array}\], Three fair dice are rolled at once. Answer in as fast as 15 minutes. Two will look at discrete variables, and one will look at continuous. There are four main classification tasks in Machine learning: binary, multi-class, multi-label, and imbalanced classifications. So, it is a continuous variable. 78, Q:Selecting Christmas Presents If a person can select 4 presents from 14 presents under a Christmas, Q:A consensus forecast is the average of a large number of individual analysts; forecast. So, it is a continuous variable. of absences Draw as many straight lines passing through both points A and B. menu Compute the probability indicated. Use the formula for weighted data. If so, give the values of $n$ and $p$. P: the number of building permits . as described in the main body of the text. Enter the email address you signed up with and we'll email you a reset link. 0.04 If the correlation coefficient is -0.80, below-average values of the dependent (y). Classify the following random variables as discrete or continuous. vising nurse wants to visit all patients in one day. N: the number of eggs laid each month by a hen. 92 1. 26/02/2023 . Classify the following random variables as discrete or continuous. Find the probability that it lands with its point in the air at least $7$ times. A laboratory performs $20$ such tests daily. 3.36. x the weight of newborns each year in a hospital 3.) If not, explain why not. The area of lots in an exclusive subdivision 8. Many phenomena can be viewed as examples of a random walk. .. the number of defective computers produced by a manufacturer. 2, Q:Let X be a discrete random variable with moment generating function given by: All other trademarks and copyrights are the property of their respective owners. Mean change So the check it's a pdf. =1-0.95 Find the probability that (i) none of the ten skeins will contain a knot; (ii) at most one will. What is the product of 1.7 and 0.2? d.N: the number of eggs laid each month by a hen. Classify the following random variables as discrete or continuous. One ticket will win $\$1,000$, two tickets will win $\$500$ each, and ten tickets will win $\$100$ each. Ask your question. The number of passengers in a passenger vehicle on a highway at rush hour. 4 A player has to cross 10 hurdles in a hurdle race. Find the expected value to the company of a single policy if a person in this risk group has a $97.25\%$ chance of surviving one year. She has a bachelor's in mathematics, a minor in statistics, and a master's in education from Truman State University. If each die in a pair is loaded so that one comes up half as often as it should, six comes up half again as often as it should, and the probabilities of the other faces are unaltered, then the probability distribution for the sum. Random Variables and Probability Distribution - Random Variables and Probability Distribution - Studocu Goodluck for your assignments random variables and probability distribution objectives: at the end of the session the learner: illustrates random variable ( Skip to document Ask an Expert Sign inRegister Sign inRegister Home Ask an ExpertNew Find the average number of patients each day who require a sedative. They take positive real values, that means that in the interval used for the variable there are infinite possible values. In a $\$1$ bet on red, the bettor pays $\$1$ to play. The number of accidents per year at an intersection. 1) Number of customers served by a coffee shop per hour. Let $X$ denote the number of dice that land with the same number of dots on top as at least one other die. Classify the following random variable according to whether it is discrete or continuous. 2.) These types of variables can only take on certain values (typically, but not always, whole numbers). 3.77 Let $X$ denote the number of the next $20$ purchasers who do so. 2010, 31, 2225-2236. 3) Time taken to prepare a drink. The number $X$ of days in the summer months that a construction crew cannot work because of the weather has the probability distribution \[\begin{array}{c|c c c c c} x &6 &7 &8 &9 &10\\ \hline P(x) &0.03 &0.08 &0.15 &0.20 &0.19 \\ \end{array}\] \[\begin{array}{c|c c c c } x &11 &12 &13 &14 \\ \hline P(x) &0.16 &0.10 &0.07 &0.02 \\ \end{array}\]. at separates the lower 40 % of the bills from the rest. It would take you literally forever: 50, 50.1, 50.11, 50.111, 50.1111, This site is using cookies under cookie policy . Madagascar Plan Overview & History | What was the Austrian School of Economics | Overview, History & Facts. Pretest m(Cu(NO3)2) = ? 2 The independent variables are lagged, and are the following: Inflation stands for the next year's expected inflation rate minus 2% (Consensus Economics), . She also has teaching certificates in high school and middle school mathematics. P: the number of building permitsissued each month in a certain city. Variable M consists of amount of milk produced which can't be counted but can be measured. Classify the following random variable. 62 To do so assume that if the cover were in place the revenue each night of the season would be the same as the revenue on a clear night. Control group Find the probability that the next litter will produce at least six live pups. Solved Classify the following random variables as discrete | Chegg.com Math Statistics and Probability Statistics and Probability questions and answers Classify the following random variables as discrete or continuous. 0.08 The number of students in a school district is a countable data set. Of all college students who are eligible to give blood, about $18\%$ do so on a regular basis. So, it is a discrete variable. every payday, at which time there are always two tellers on duty. span(X). Moment generating function of X is Discrete 72 A multiple choice exam has $20$ questions; there are four choices for each question. 0.34 So, it is a discrete variable. The number of arrivals at an emergency room between midnight and 6: 00 a. m. The weight of a box of cereal labeled " 18 ounces." The duration of the next outgoing telephone call from a business office. A box that contains two or more grapefruit of inferior quality will cause a strong adverse customer reaction. The number of leaves on a tree is a countable set. Classify the following random variables as discrete or continuous. [1 pt each] Time to finish a race d. Number of doubles in a roll of two dice 1 b. Find the expected value to the company of a single policy if a person in this risk group has a $99.62\%$ chance of surviving one year. 2. The random variable is then continuous. What is the probability that they will clear exactly 4 hurdles? 3. Provide an appropriate response. copyright 2003-2023 Study.com. Q:The values of P(Z0.1) and P (Z0.1) are the same. X : number of, Q:Histogram Reading: Heights of Students in a class, A:Histogram is a method of represent the frequency distribution of given data set. Suppose that among a group of cars on a circular track there is enough fuel for one car to complete a lap. 3.65 Find the value th m(HNO3) = 12,6 at separates the lower 40 % of the bills from the rest. m(CuO) = 10 Example: height, weight and temperatures SEATWORK Classify the following random variables as DISCRETE or CONTINUOUS: 1.) Find the average number of appeals in such mailings that are made to students who already give blood. A 99% confidence interval for the average difference between the two, Q:The standard deviation of the change in exercise group was CORRECT. The tourist sees four local people standing at a bus stop. Find the most likely number of skeins that contain knots. 2 Let $X$ denote the net gain from the purchase of a randomly selected ticket. College GPA Determine the value $C$ must have in order for the company to average a net gain of $\$250$ per policy on all such policies. Answer: Discrete, quantitative, ratio Suppose the, A:given data N : the exact time it takes to evaluate 27+ 72. Legal. $X$ is the number of defective parts in a sample of ten randomly selected parts coming from a manufacturing process in which $0.02\%$ of all parts are defective. Posttest What is the product of 1.7 and 0.2? Discrete If the ball does not land on red he loses his dollar. Classify the following random variables as discrete or continuous: X: the number of automobile accidents per year in Virginia. Find the probability that the proofreader will miss at least one of them. He makes four sales calls each day. P(x) Result: Continuous. We have to do comprasion between 99% confidence interval, Q:A scatterplot is made of the yearly advertising budgets (x axis) and yearly revenues (y axis) of 200, A:Given 1. the number of defective computers produced by a manufacturer - DISCRETE, 2. the weight of newborns each year in a hospital - CONTINUOUS, 3. the number of siblings in a family of a region - DISCRETE, 4. the amount of paint utilized in a building project - CONTINUOUS, 5. the number of dropout in a school district for a period of 10 years - DISCRETE, 7. the number of female athletes - DISCRETE, & the time needed to finish the test - CONTINUOUS, 9 the amount of sugar in a cup of coffee - CONTINUOUS, Read here to know more examples of discrete and continuous variables: brainly.ph/question/14645308. Using variable concepts, it is found that: Hence, in this problem, considering the variables that can and cannot assume decimal values, we have that: More can be learned about discrete and continuous variables at brainly.com/question/16978770. High School GPA Find the average time the bus takes to drive the length of its route. What Is Plantar Fasciitis? Answer in as fast as 15 minutes. Let $X$ denote the number of patients on any given day who require a sedative. of patients = 10 If the ball lands in a red slot, he receives back the dollar he bet plus an additional dollar. Discrete variables are those that represent things that are counted, 3 red cars, 2 chickens, etc.. 95% CI Get access to millions of step-by-step textbook and homework solutions, Send experts your homework questions or start a chat with a tutor, Check for plagiarism and create citations in seconds, Get instant explanations to difficult math equations. Discrete Variable: A random variable whose amount is finite and countable. The number of kernels of popcorn in a $1$-pound container. Three coins are tossed and the random variable Z gives the number of tails. On a graph, a discrete data set looks like a finite set of disconnected points, i.e.. On a graph, a continuous data set looks like a smooth line or curve, i.e.. 86 std., Q:1. Find the confidence interval of, A:Given Classify the following random variables as discrete or continuous: a.X: the number of automobile accidents per year in Virginia. The number of vehicles owned by a randomly selected household. As sometimes happens with probabilities computed as empirical relative frequencies, probabilities in the table add up only to a value other than $1.00$ because of round-off error. Q: the weight of grain produced per acre. 46. A:We have to determine which confidence level is wider. Step 1: Identify the variable in the problem. Let $X$ denote the number of tosses made. Number of diamonds in a poker hand e. Hours spent answering a test 1 c. Height of 100 students 1 2. 0.1 Pattern Recognit. A:givendatapopulationsd()=2595%cifor,E=3;n=? 1) Classify the following random variable according to whether it is discrete or continuous. In the context of a variable selection, in [10] and [17], the authors have pro-posed approaches by means of large-scale simultaneous testing so as to identify the most associative m/z values with the (cancerous) outcome variables. Assume the bills are normally distributed with standard deviation $ 17.15 . Find the probability that, on a randomly selected day, the salesman will make a sale. 5 Why? Write only a number as your answer. D = domestic flight. Show that the expected number of diseased individuals in the group of $600$ is $12$ individuals. Let our experts help you. The data for thefn1,fn2,fndiff,fs1,fs2,andfsdiff is given. Find the probability that on any given day between five and nine patients will require a sedative (include five and nine). If the experiment of dropping the tack $15$ times is done repeatedly, what is the average number of times it lands with its point in the air? Number of houses, Q:se the sample data to construct a scatterplot. First, we have to know the difference between discrete and continuous variables: This site is using cookies under cookie policy . If the ball lands in an even numbered slot, he receives back the dollar he bet plus an additional dollar. $X$ is a binomial random variable with parameters $n=16$ and $p=0.74$. View this solution and millions of others when you join today! The pattern evident from parts (a) and (b) is that if. Your friend Caroline helped you with the null, A:Given that, Find the average number monetary gifts a college can expect from every $2,000$ solicitations it sends. the amount of milk produced yearly by a particular cow. Discrete Random Variables are variables that can take on a finite. Plainmath.net is owned and operated by RADIOPLUS EXPERTS LTD. Get answers within minutes and finish your homework faster. D. 3.4, Electricity bills in a certain city have mean $ 106.27 . a. P(z -1.0) b. P(Z > -1.0) c. P(Z > -1.5) The number of no-shows for every $100$ reservations made with a commercial airline. The number $X$ of customers in the bank who are either at a teller window or are waiting in a single line for the next available teller has the following probability distribution. Let $C$ denote how much the insurance company charges such a person for such a policy. Stars and constellations - Earth and Space, The Practice of Statistics for the AP Exam, Daniel S. Yates, Daren S. Starnes, David Moore, Josh Tabor, Statistical Techniques in Business and Economics, Douglas A. Lind, Samuel A. Wathen, William G. Marchal, Elementary Statistics: Picturing the World. Recalculate according to your conditions! (Round your answer to three, A:Given Information: We need to determine whether the random variable "length of hairs" is discrete or continuous. One-third of all patients who undergo a non-invasive but unpleasant medical test require a sedative. *Response times may vary by subject and question complexity. The package also introduces support functions to compute raw moments, limited moments and the moment generating function (when it exists) of continuous distributions. N: the number of eggs laid each month by a hen. Do not write any units. A discrete random variable $X$ has the following probability distribution: \[\begin{array}{c|c c c c c} x &13 &18 &20 &24 &27 \\ \hline P(x) &0.22 &0.25 &0.20 &0.17 &0.16 \\ \end{array}\]Compute each of the following quantities. Y : the length of timeto play 18 holes of golf. 65 Circle the correct answer. The area of lots in an exclusive subdivision 4. The remaining two slots are numbered $0$ and $00$ and are green. The average weight of newborn babies born in a particular county one month. The probability that he will, Q:Calculate r, the correlation coefficient ________________ Find the standard deviation of the length of time the bus takes to drive the length of its route. b. . Get access to thousands of practice questions and explanations! Do not write any units. A roulette wheel has $38$ slots. Thus, it is a continuous variable. Find the average number of nails per pound. The number $X$ of nails in a randomly selected $1$-pound box has the probability distribution shown. The amount that households pay service providers for access to the, A:For the distribution of internet service fees (which is stated to be not normal), it is given that:, Q:Automobile manufacturers are interested in the difference in reaction times for drivers reacting to, A:Given data is The number of automobile accidents per year in Virginia (X) is a discrete variable, as there can't be half an accident, one counts how many accidents are per year to know X. Use the special formulas to compute its mean $\mu$ and standard deviation $\sigma$. Round to two decimal places (for example: 42.81). Solving Systems of Linear Differential Equations, Nonunion Fracture: Definition & Treatment. Are movie time lengths discrete or continuous variables? Grapefruit are sold by the dozen. Q:A watch manufacturer claims that their watches on average will neither gain nor lose 1. not binomial; trials are not independent. Find the probability that such a shipment will be accepted. A fair coin is tossed repeatedly until either it lands heads or a total of five tosses have been made, whichever comes first. The number of accidents per year at an intersection. Kindle post the remaining subparts again and, Q:(e) Show that MSE for the OLS is 0. The weight of the professional wrestler 2. A discrete variable is one whose value can be determined by counting.

Jordyn Bahl Pitching Speed Mph, Kraken Engineer Salary, Articles C