8 /43 >150% O + IabactivityThe number of inquiries received per day by the Office of Admissions in a certain university is shown below. Finddiscrete mean distribution, variance, and standard deviation.Number of InquiriesProbability P(x)220.08230.19240.36250,25260.07270.051930DR.

Ans#- Given probability distribution Number of inquires Probability P(x) 22 0.08 23…

Answered: The number of inquiries received per…

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...

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The prices paid for a model of a new car are approximately normally distributed with a mean of $17,000 and a standard deviation of $500. The price that is 3 standard deviations above the mean is $_____ . The price that is 2 standard deviations below the mean is $_____ . The percentage of buyers who paid between $16,500 and $17,500 is _____% The percentage of buyers who paid between $17,000 and $18,000 is _____%. The percentage of buyers who paid less than $16,000 is _____%.
The data represents the murder rate per 100,000 individuals in a sample of selected cities in the United States. Find the variance and standard deviation. Round your answer to at least one decimal place. class limit Frequency 5-11 9 12-18 5 19-25 8 26-32 3 33-39 3 40-46 7
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esc Introduction A chain of restaurants has historically had a mean wait time of 9 minutes for its customers. Recently, the restaurant added several very popular dishes back to their menu. Due to this, the manager suspects the wait time, μ, has increased. He takes a random sample of 44 customers. The mean wait time for the sample is 9.6 minutes. Assume the population standard deviation for the wait times is known to be 3.3 minutes. Can the manager conclude that the mean wait time is now greater than 9 minutes? Perform a hypothesis test, using the 0.05 level of significance. (a) State the null hypothesis Ho and the alternative hypothesis H₁. Ho: O H₁:0 (b) Perform a Z-test and find the p-value. Here is some information to help you with your Z-test. The value of the test statistic is given by Standard Normal Distribution Step 1: Select one-tailed or two-tailed. O One-tailed O Two-tailed Explanation μ Check □<口 X X OSO 020 0=0 x-H √n • The p-value is the area under the curve to the right…
Fuel economy estimates for automobiles built in a certain year predicted a mean of 24.8 mpg and a standard deviation of 7.2 mpg for highway driving. Assume that a normal distribution can be applied. Within what range are 68% of the automobiles? The range for 68% of the automobiles is to xample Get more help. mpg. Clear all Check answe
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Durations of clinical research studies awarded by a particular federal agency are assumed to follow a normal distribution, with a mean of 24 months and a standard deviation of 2.5 months.Find the probability that a study is awarded with a duration between 15 and 25 months.
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The number of inquiries received per day by the Office of Admissions in a certain university is shown below. Find discrete mean distribution, variance, and standard deviation. Number of Inquiries Probability P(x) 22 0.08 23 0.19 24 0.36 25 0.25 26 0.07 27 0.05