An online store conducted a study to see how many different web pagestheir customers visited (above the minimum necessary) before finding theirdesired product. The study resulted in the discrete probability distribution shownbelow. Let X be the number of pages visited before finding their desiredpage. Using this distribution, compute the expected value of X.30.X-x0123P(X-x) P(XSX)PMFCDF0.46000.46000.32000.78000.18000.96000.0400 1.000029. (For a normal random variable with the mean of 99 and standard deviation of 3, P(X>101.37) is exactly or closest to:Also, please draw a rough sketch of the distribution and make sure to identify the shaded region and X-value.Sample data are collected from an experiment and the sample mean and sample standard deviation of the data are20.087 and 3.861 respectively. The sample size was 35. Given this information, construct a 90% 2-sided confidence intervalfor the mean.

It is given that X be the number of pages visited before finding their desired page. Note:…

Answered: An online store conducted a study to…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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The time it takes to complete an online survey is uniformly distributed over the range of 10.1 minutes to 16 minutes. Calculate the probability that it takes a person between 11.2 and 11.9 minutes to complete the survey.
Let X = {Email, In Person, Instant Message, Text Message}; P(Email) = 0.06 P(In Person) = 0.55 P(Instant Message) = 0.24 P(Text Message) = 0.15 Is this model a probability distribution? A. Yes. B. No. C. Maybe.
Senior high school students are randomly selected to gather data on the hours spent per day playing mobile games. The table below shows the probability distribution of X=hours spent playing mobile games. Probability Distribution of X Length (in hours) 0 1 2 3 4 5 6 Probability 0.012 0.062 0.281 0.326 ? 0.112 PALERMORY 0.083 A. Find the missing value for P(X=4) in the given probability distribution. ✓ [Select ] 0.241 0.214 0.142 0.124
As determined from long experience, the number of automobiles rented per hour, X, at the Rent-A Car counter at Honolulu International Airport has the following probability distribution. Automobiles Rented Probability 0 .10 1 .25 2 .45 3 “a” 4 .05 Find the probability of renting between 2 and 4 automobiles (including 2 and 4).
A university is considering setting up an information desk manned by one employee. Based on information obtained from similar information desks, it is believed that people will arrive at the desk at the rate of 18 per hour. It takes an average of 2 minutes to answer a question. It is assumed that arrivals are Poisson and answer times are exponentially distributed. What is the arrival rate? (Include the units.) What is the service rate? (Include the units.) Find the probability that the employee is idle.
Open the Excel file GSB 519 Additional Years of Life for Males. The random variable x =.5, 1.5, 2.5,…..,110.5, where x denotes additional years of life beyond age zero. The second column shows the probability that each specific value of x occurs. This column contains the probability mass values, f(x). For example, the probability that a new-born male baby will live 20.5 years (not less or not more) is .00133349, i.e., f(20.5) = .00133349. Find the following properties of the random variable x. a. mean b. median c. mode d. variance e. standard deviation f. skewness g. kurtosis h. coefficient of variation i. Find the value of the distribution function F(x) when x = 65.5. j. How much total probability is contained within two standard deviations of the mean? [You should use Excel in order to avoid hand calculations. However, do not use Excel commands like AVERAGE or STDEV; you will get incorrect answers if you do.] Addition Years of Life Probability of Additional Years Beyond Age…
What type of distribution does Y follow? A. Exponential B. Poisson C. Uniform D. Binomial E. Bernoulli
Find the probability P(Ec) if P(E)=0.17.
A student who is taking a stats class was assigned to watch the cars driving along Pereira Drive and count the number of people who are in each cars. Let Y be the number of people in a given car that the student observe. The following table shows the cdf of Y: 1 3 4 P(Y < y) 0.06 0.32 0.71 0.88 1 (a) What is the probability that a given car has 2 people in it? (b) What is the probability that a give car has 3 or more people in it. (c) What is the expected number of people in a given car that the student observe.
An appliance dealer sells three different models of upright freezers having 11.5, 14.9, and 20.1 cubic feet of storage space. Let x = the amount of storage space purchased by the next customer to buy a freezer. Suppose that x has the following probability distribution. X p(x) 11.5 14.9 20.1 0.2 0.5 0.3 (a) Calculate the mean (in cubic feet) of x. cubic feet Calculate the standard deviation (in cubic feet) of x. (Round your answer to three decimal places.) cubic feet (b) If the price of the freezer depends on the size of the storage space, x, such that Price = 25x8.5, what is the mean price paid (in dollars) by the next customer? $ (c) What is the standard deviation of the price paid (in dollars)? (Round your answer to the nearest cent.) $
Assume that 12 jurors are randomly selected from a population in which 71% of the people are Asian-Americans. Refer to the probability distribution table below and find the indicated probabilities. x� P(x)�(�) 0 0+ 1 0+ 2 0.0001 3 0.0011 4 0.0063 5 0.0246 6 0.0704 7 0.1477 8 0.2261 9 0.246 10 0.1807 11 0.0804 12 0.0164 Find the probability of exactly 8 Asian-Americans among 12 jurors.

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