A computer selects a number X from 4 to 12 randomly and uniformly. Round all answers to 4 decimal places where possible. a. What is the distribution of X? X ~ U( b. Suppose that the computer randomly picks 36 such numbers. What is the distribution of æ for this selection of numbers. a c. What is the probability that the average of 36 numbers will be less than 8.7?

A computer selects a number X from 4 to 12 randomly and uniformly. Round all answers to 4 decimal places where possible. a. What is the distribution of X? X ~ U( b. Suppose that the computer randomly picks 36 such numbers. What is the distribution of æ for this selection of numbers. a c. What is the probability that the average of 36 numbers will be less than 8.7?

Name: A computer selects a number X from 4 to 12randomly and uniformly. Rou
Uploaded: 2024-03-20T07:06:41.000Z
Channel: Bartleby
Description: A computer selects a number X from 4 to 12randomly and uniformly. Round all answers to 4decimal places where possible.a. What is the distribution of X? X ~ U(b. Suppose that the computer randomly picks 36such numbers. What is the distribution of x f

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

See similar textbooks

Similar questions

CH7: Dr. Helen obtains a random sample of n = 14 scores from a population with o = 8. If the sample mean is 46 points smaller than the population mean, what is the z-score for the sample mean? Oa. 227.69 b. -227.69 Oc. 21.51 O d.l-21.51|| e. none of the options
A computer selects a number X from 1 to 8 randomly and uniformly. Round all answers to 4 decimal places where possible. a. What is the distribution of X? X - U b. Suppose that the computer randomly picks 38 such numbers. What is the distribution of a for this selection of numbers. T - N( c. What is the probability that the average of 38 numbers will be more than 3.6?
Bill Alther is a zoologist who studies Anna's hummingbird (Calypte anna).t Suppose that in a remote part of the Grand Canyon, a random sample of six of these birds was caught, weighed, and released. The weights (in grams) were as follows. 3.7 2.9 3.8 4.2 4.8 3.1 The sample mean is x = 3.75 grams. Let x be a random variable representing weights of hummingbirds in this part of the Grand Canyon. We assume that x has a normal distribution and a- 0.90 gram. Suppose it is known that for the population of all Anna's hummingbirds, the mean weight is u= 4.70 grams. Do the data indicate that the mean weight of these birds in this part of the Grand Canyon is less than 4.70 grams? Use a- 0.05. (a) What is the level of significance? State the null and alternate hypotheses. Will you use a left-tailed, right-tailed, or two-tailed test? Ho: H 4.7 g; right-tailed Ho: H= 4.7 g; H: < 4.7 g; left-tailed Ho: H- 4.7 g; H: 4.7 g; two-tailed (b) What sampling distribution will you use? Explain the rationale…
Help with c
S K Use the data in the following table, which lists drive-thru order accuracy at popular fast food chains. Assume that orders are randomly selected from those included in the table. Drive-thru Restaurant C B 275 Order Accurate Order Not Accurate If one order is selected, find the probability of getting an order that is not accurate. View an example Get more help - 31 The probability of getting an order that is not accurate is (Round to three decimal places as needed.) ► 149 Next
Bill Alther is a zoologist who studies Anna's hummingbird (Calypte anna).t Suppose that in a remote part of the Grand Canyon, a random sample of six of these birds was caught, weighed, and released. The weights (in grams) were as follows. 3.7 2.9 3.8 4.2 4.8 3.1 The sample mean is x = 3.75 grams. Let x be a random variable representing weights of hummingbirds in this part of the Grand Canyon. We assume that x has a normal distribution and o = 0.96 gram. Suppose it is known that for the population of all Anna's hummingbirds, the mean weight is µ = 4.80 grams. Do the data indicate that the mean weight of these birds in this part of the Grand Canyon is less than 4.80 grams? Use a = 0.10. (a) What is the level of significance? State the null and alternate hypotheses. Will you use a left-tailed, right- tailed, or two-tailed test? O Ho: H 4.8 g; right-tailed O Ho: H = 4.8 g; H1: µ < 4.8 g; left-tailed (b) What sampling distribution will you use? Explain the rationale for your choice of…
Subpart D,E,F
A computer selects a number X from 4 to 11 randomly and uniformly. Round all answers to 4 decimal places where possible. a. What is the distribution of X? X - U(| b. Suppose that the computer randomly picks 39 such numbers. What is the distribution of a for this selection of numbers. a - N( c. What is the probability that the average of 39 numbers will be less than 6.6?
Determine whether each random variable is discrete or continuous. Answer only DISCRETE OR CONTINUOUS.a. The number of boys in a three-child family chosen at random.b. A cup of coffee served at a restaurant's temperature.c. The number of no-shows for every 100 commercial airline reservations.d. The number of automobiles owned by a household chosen at random.e. The average amount spent on electricity by a randomly selected household ineach state during the month of July.
Help with c
A computer selects a number X from 0 to 5 randomly and uniformly. Round all answers to 4 decimal places where possible. a. What is the distribution of X? X - U( b. Suppose that the computer randomly picks 38 such numbers. What is the distribution of x for this selection of numbers. NO c. What is the probability that the average of 38 numbers will be less than 2?
Qs: A fair coin is tossed three times. Let X denotes 1 or 0 according as a head or a tail occurs on the first toss, and let Y denote the number of tails which occur. Determine (Answer ONLY ONE): a. The distribution of X and Y b. The joint distribution h of X and Y