In the last quarter of 2007, a group of 64 mutual funds had a mean return of 2.9%
with a standard deviation of 4.1%.
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 probabilities rather than using technology to find the values more precisely. Be sure to draw a picture first.
a) Returns of
7.0% or more |
b) Returns of
2.92% or less |
c) Returns between
negative 9.4% and15.2% |
d) Returns of
less thannegative 5.3% |
In the last quarter of 2007, a group of 64 mutual funds had a mean return of 2.9% with a standard deviation of 4.1%. If...
In the last quarter of 2007, a group of 64 mutual funds had a mean return of 5.5% with a standard deviation of 7.7%. 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 probabilities rather than using technology to find the values more precisely. Be sure to draw a picture first. a) Returns of negative 17.6% or less ...
In the last quarter of 2007, a group of 64 mutual funds had a mean return of 5.5% with a standard deviation of 6.1%. 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 probabilities rather than using technology to find the values more precisely. Be sure to draw a picture first. a) Returns of 23.8% or more c) Returns...
In the last quarter of 2007, a group of 64 mutual funds had a mean return of 2.7% with a standard deviation of 7.6%. 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 probabilities rather than using technology to find the values more precisely. Be sure to draw a picture first. a) Returns of-12.5% or less b) Returns of...
In the last quarter of 2007, a group of 64 mutual funds had a mean return of 2.8% with a standard deviation of 6.5% 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 probabilities rather than using technology to find the values more precisely. Be sure to draw a picture first. a) Returns of -16.7% or less c) Returns...
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In the last quarter of 2007, a group of 64 mutual funds had a mean return of 5.45.4% with a standard deviation of 6.26.2%. 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 probabilities rather than using technology to find the values more precisely. Be sure to draw a picture first. a) Returns of negative 13.2−13.2% or lessless b)...
Ch 7 Q1 In the last quarter of 2007, a group of 64 mutual funds had a mean return of 2.4% with a standard deviation of 5.5%. 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 probabilities rather than using technology to find the values more precisely. Be sure to draw a picture first. a) Returns of −14.1%...
Please Answer a-d Question Help In the last quarter of 2007, a group of 64 mutual funds had a mean return of 2.5% with a standard deviation of 4.1%. 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 probabilities rather than using technology to find the values more precisely. Be sure to draw a picture first. a) Returns of...
In the last quarter of 2007, a group of 64 mutual funds had a mean return of 1.8% with a standard deviation of 4.5%. Consider the Normal model N(0.018,0.045) for the returns of these mutual funds. a) What value represents the 40th percentile of these returns? b) What value represents the 99th percentile? c) What's the IQR, or interquartile range, of the quarterly returns for this group of funds?
In the last quarter of 2007, a group of 64 mutual funds had a mean return of 2.4% with a standard deviation of 6.1% Consider the Normal model N(0.0240.024,0.0610.061) for the returns of these mutual funds. a) What value represents the 40th percentile of these returns? b) What value represents the 99th percentile? c) What's the IQR, or interquartile range, of the quarterly returns for this group of funds?