anonymous
  • anonymous
Heights of men on a baseball team have a​ bell-shaped distribution with a mean of 175 cm and a standard deviation of 5 cm. Using the empirical​ rule, what is the approximate percentage of the men between the following​ values? (Part a and Part b, not answers choices) a. 160 cm and 190 cm b. 170 cm and 180 cm
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
Have you see this before? |dw:1442110512061:dw|
anonymous
  • anonymous
Yes but I'm not sure how to use it to solve the question
anonymous
  • anonymous
The first thing you should do is fill in the numbers at the bottom of the graph. µ = mean σ = standard deviation Put the mean in the middle, and add the standard deviation to the right Subtract the standard deviation to the left |dw:1442110705851:dw|

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anonymous
  • anonymous
Once you have that, just add up the percentages
anonymous
  • anonymous
So for A you want to add up the percentages between 160 and 190|dw:1442110884768:dw|
anonymous
  • anonymous
99.6%?
anonymous
  • anonymous
I got 99.7%
anonymous
  • anonymous
You are correct(: so I would basically do the same for part b right? fill in using the mean for b
anonymous
  • anonymous
well the mean and standard deviation are the same for A and B. For b they're just looking for a different range, so this time only add the percentages between 170 and 180
anonymous
  • anonymous
34%?
anonymous
  • anonymous
thats 175-180. how do i know how much to add to get 170-180?
anonymous
  • anonymous
If you notice, 170 is on there too, to the left of 175. So add 34 for 170 to 175 and another 34 for 175 to 180
anonymous
  • anonymous
|dw:1442111563473:dw|
anonymous
  • anonymous
ohhhhh, got it ! ^-^ thank youuuuuuuu
anonymous
  • anonymous
you're welcome

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