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anonymous

  • one year ago

height of men on a baseball team has a bell shaped distribution with a mean of 175 cm and a standard deviation of 9 cm...Using the empirical rule, what is the approximate percentage of the men between the following values? percent of men between 157cm and 193cm percent of men between 166cm and 184cm

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  1. egbeach
    • one year ago
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    do you know how to draw a bell curve?

  2. anonymous
    • one year ago
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    Yea

  3. egbeach
    • one year ago
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    draw one out. put the mean as 175 and add/ subtract 9 as the percent gets higher or lower

  4. anonymous
    • one year ago
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    having trouble drawing it so u can see

  5. egbeach
    • one year ago
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    |dw:1436316889794:dw|

  6. egbeach
    • one year ago
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    the top number is the percent and the bottom is the height

  7. anonymous
    • one year ago
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    k

  8. egbeach
    • one year ago
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    do you need anymore help?

  9. anonymous
    • one year ago
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    yea

  10. egbeach
    • one year ago
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    okay... well lets start with the first one. 157 through 193 is the majority of the graph. 2.5 on each side of the graph isnt included though. if you subtract that from 100 what do you get?

  11. anonymous
    • one year ago
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    -97.5

  12. egbeach
    • one year ago
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    Remember that there is 2.5 on EACH end. so you really have to add both ends together and subtract from 100 so the answer is 95%

  13. anonymous
    • one year ago
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    Ok

  14. egbeach
    • one year ago
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    now for the second one you will notice that there are two 34% in between them. so just add them up and you get your answer.

  15. anonymous
    • one year ago
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    so that 34 twice wihich will give 68

  16. egbeach
    • one year ago
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    yep!

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