The following graph, showing the distribution of the heights of 8585 men, is anapproximation to a nearly normal distribution. The mean is approximately 68 inchesand the standard deviation is approximately 3 inches.15001200900-60030056 58 60 62 64 66 68 70 72 74 76 78 801) How many of these men are between 5'5" and 5'11" tall ? (that is one standarddeviation of the mean)2) How many men are between 5'2" and 6'2" tall ? (2 st. dev.)3) How many men are less than 5'2" tall ?4) What percent of the men are taller than 71 inches?

The question is about normal dist. Given : Total no. of men = 8585 Popl. mean height of men ( μ ) =…

Answered: The following graph, showing the…

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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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.
Consider the data from the Anthropology 105 class. The mean for women is 64.33 in and the standard deviation is 2.64 in. The average height of men in the US is approximately 5ft 10in. What proportion of women represented here are shorter than the average man?
Suppose the monthly salary of persons living in a community is normally distributed with mean $2000 and standard deviation of $500. Between what range would you find approximately 95% of persons in this community earning? Select one: a. $1500-2000 b. $1000-$2000 c. $1500-2500 d. $1000-$3000
The grades for 30 students on the most recent exam are given in the data table below: Round your answer to 2 decimal places as needed 70 70 80 80 70 60 90 80 80 80 60 70 70 70 70 90 70 70 80 90 60 90 70 60 90 70 06 90 90 80 What is the mean score for the exam? What is the median score for the exam? What is the standard deviation for the exam?
The average height of 1,000 children is 150cm with a standard deviation of 10cm. How many children stand between 155cm and 150cm ? A. Find the raw score for z= -1,-2,-3,+1,+2,+3 B. Sketch the graph C. What z score corresponds to 50? D. What z score corresponds to 60? E. Find the total area . F. Multiply the total area by 1000. G. Make a conclusion.
The following is the height of several students: Jessi: 4'-5", Tom: 6'-1", Mike: 5-9", Julie: 5-1", Michelle: 5-1", Jody: 5-2", and Dave: 6-3". What is the standard deviation of the height of the students? (Round to the nearest whole number.)
In a Normal distribution, the Empirical Rule states that... ["", "", "", "", ""] of the data is within 1 standard deviation of the mean, ["", "", "", "", ""] of the data is within 2 standard deviation of the mean, and ["", "", "", "", ""] of the data is within 3 standard deviation of the mean.
What provides a measure of the variance caused by random, unsystematic differences? a. the error term b. the F ratio c. MS d. SStotal
Calculate the median of the following distribution. Annual Sales Frequency Annual Sales Frequency 000) Less than 10 '000) Less than 40 4 55 20 20 50 62 30 35 60 67 Is it possible to calculate the arithmetic mean ? If possible, calculate it. Hence obtain an estimate of mode.
The arithmetic mean height of 50 students of a college is 5'8". The height of 30 of these is given in the frequency distribution below. Find the arithmetic mean height of the remaining 20 students.
Suppose the value of a stock varies each day from $16 to $25 with a uniform distribution. Find m.

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