At one university, the mean distance commuted to campus by students is 16.0 miles, with a standard deviation of 5.3 miles. Suppose that the commutedistances are normally distributed. Complete the following statements.(a) Approximately ?of the students have commute distances between 0.1miles and 31.9 miles.(b) Approximately 68% of the students have commute distances between milesand O miles.

Answered: Image /qna-images/answer/026ba9f8-0f08-482d-a122-4d06c290a61c.jpg

Answered: At one university, the mean distance…

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 following table gives the marks of a sample of students in Statistics. Marks No. of Students 40 to less than 50 50 to less than 60 12 60 to less than 70 22 70 to less than 80 34 80 to less than 90 39 90 to less than 100 19 The mean is: Select one: 71.75 74.25 75.98 76.27
The following data give the speeds (in kilometer) as measured by radar of 5 selected cars traveled at NLEX, 107, 100, 126, 120, 100 What is the standard deviation?
Suppose that the speeds of cars travelling on California freeways are normally distributed with a mean of 60 miles/hour. The highway patrol's policy is to issue tickets for cars with speeds exceeding 80 miles/hour. The records show that exactly 5% of the speeds exceed this limit. Find the standard deviation of the speeds of cars travelling on California freeways. Carry your intermediate computations to at least four decimal places. Round your answer to at least one decimal place.
Suppose that the speeds of cars travelling on California freeways are normally distributed with a mean of 62 miles/hour. The highway patrol's policy is to issue tickets for cars with speeds exceeding 75 miles/hour. The records show that exactly 2% of the speeds exceed this limit. Find the standard deviation of the speeds of cars travelling on California freeways. Carry your intermediate computations to at least four decimal places. Round your answer to at least one decimal place.
What is the population standard deviation using the following formula
A set of data items is normally distributed with a mean of 108 and a standard deviation of 27. Convert each of the following data items to a z- score. Round your answer to the nearest hundredth. (a) 226 Z = (b) 85 Z =
Suppose that the speeds of cars travelling on California freeways are normally distributed with a mean of 61 miles tickets for cars with speeds exceeding 80 The records show that exactly 1% of the speeds exceed this limit. Find the standard deviation of the speeds of hour cars travelling on California freeways. Carry your intermediate computations to at least four decimal places. Round your answer to at least one decimal place. miles hour X miles hour 5 . The highway patrol's policy is to issue
The following data are the distances from the workplace (in miles) for the 5 employees of a small business. 14, 3, 8, 13, 2 Assuming that these distances constitute an entire population, find the standard deviation of the population. Round your answer to two decimal places.
A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of 231.1-cm and a standard deviation of 2-cm. Answer the following to the nearest tenth of a cm. Find P10, which is the length separating the shortest 19% rods from the longest 81%. P19 -cm
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The mean and standard deviation of a set of 11 observations of time are 8 seconds and 2.5 seconds respectively. An observation, equal to the mean, is removed from the dataset. The new variance in seconds is approximately: A. 6.51 sec B. 7.00 sec C. 7.53sec D. 6.94 sec
Direction: Solve the following problems. Identify the given and provide the correct illustrations for each situation. Problem: The IQ of 100 STEM students in ZNHS are found out to be normally distributed, having a mean of 110 and a standard deviation of 10. a. If a scholarship is offered to students with IQ higher than 115, What is the percentage of qualified STEM students. b. if University of the Philippines requires at least an IQ of 100 for admission, how many of STEM students may be admitted? c. If University of the Philippines gives scholarship to the top 10% of the group, find the least IQ a ŠTEM student must have to avail scholarship.

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