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anonymous

  • one year ago

It is found that the number of raisins in a box of popular cereal is normally distributed, with a mean of 133 raisins per box and standard deviation of 10 rasins. My box has 157 rasins. What is the z-score for this box of cereal?

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  1. anonymous
    • one year ago
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    do you know the Standardization equation?

  2. anonymous
    • one year ago
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    yes it is in my notes!

  3. anonymous
    • one year ago
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    if just get confused as to where each number needs plugged in

  4. anonymous
    • one year ago
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    ok let me write it out

  5. anonymous
    • one year ago
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    \[Z=\frac{ \mu-x }{\sigma }\]

  6. anonymous
    • one year ago
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    thank you

  7. anonymous
    • one year ago
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    so µ= 133 because µ is the mean. x= 157 because it is the x value you are looking for. and sigma ( the funny letter under the fraction) is 10 because the standard deviation is 10

  8. anonymous
    • one year ago
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    then plug all those into the equation and you should get a positive number

  9. anonymous
    • one year ago
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    like 2.4 or somthing i'm just guessing

  10. anonymous
    • one year ago
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    cool?

  11. anonymous
    • one year ago
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    great, thanks again!

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