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In the last quarter of 2007, a group of 64 mutual funds had a mean return of 6.9% with a standard deviation of 7.8%. If a normal model can be used to model them what percent of the funds would you expect to be in each region? Use the 68-95-99.7 rule to approximate the probablies rather than using technology to find the values more precisely. Be sure to draw a pichure first. a) Returns of -17.5% or less e) Retums between -9.7% and 21.5% b) Returms of 5.9% or more d) Returms of less than -1.9% a) The expected percentage of retums that are - 17.5% or less is 0.15 %. (Type an integer or a decimal) b) The expected percentage of returns that are 5.9% or more is %. (Type an integer or a decimal)

In the last quarter of 2007, a group of 64 mutual funds had a mean return of 6.9% with a standard deviation of 7.8%. If a normal model can be used to model them what percent of the funds would you expect to be in each region? Use the 68-95-99.7 rule to approximate the probablies rather than using technology to find the values more precisely. Be sure to draw a pichure first. a) Returns of -17.5% or less e) Retums between -9.7% and 21.5% b) Returms of 5.9% or more d) Returms of less than -1.9% a) The expected percentage of retums that are - 17.5% or less is 0.15 %. (Type an integer or a decimal) b) The expected percentage of returns that are 5.9% or more is %. (Type an integer or a decimal)

MATLAB: An Introduction with Applications
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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In the last quarter of 2007, a group of 64 mutual funds had a mean return of 6.9% with a standard deviation of 7.8%. Ifa normal model can be used to model them, what percent of the funds would you expect to be in each region? Use the 68-95-99.7 rule to approximate the probabilities rather than using technology to find the values more precisely. Be sure to draw a picture first. a) Returns of -17.5% or less c) Returns between -9.7% and 21.5% b) Returns of 5.9% or more d) Retums of less than -1.9% PP a) The expected percentage of retums that are -17.5% or less is 0.15 . (Type an integer or ac b) The expected percentage of returns that are 5.9% or more is %. (Type an integer or a decimal.)
Transcribed Image Text:In the last quarter of 2007, a group of 64 mutual funds had a mean return of 6.9% with a standard deviation of 7.8%. Ifa normal model can be used to model them, what percent of the funds would you expect to be in each region? Use the 68-95-99.7 rule to approximate the probabilities rather than using technology to find the values more precisely. Be sure to draw a picture first. a) Returns of -17.5% or less c) Returns between -9.7% and 21.5% b) Returns of 5.9% or more d) Retums of less than -1.9% PP a) The expected percentage of retums that are -17.5% or less is 0.15 . (Type an integer or ac b) The expected percentage of returns that are 5.9% or more is %. (Type an integer or a decimal.)
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