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January 27, 2015

January 27, 2015

Posted by **Jodine** on Friday, December 12, 2008 at 10:00pm.

38 35 43 27 24 40 38

21 34 27 35 36 24 33

27 33 44 45 23 33 33

24 33 27 32 35 29 31

A)Calculate the mean,(u), and standard deviationof the data. Answer to the nearest tenth.

(My answer): U=32.3 SD=6.3

B) Calculate the percent sales, to the nearest whole number

i)Within one SD of the mean.

?????????????????????

ii)Within two SD of the mean.

??????????????????????????

- Math-statistics -
**bobpursley**, Friday, December 12, 2008 at 10:28pmOn your standard deviation, I did sigma n-1 and got 6.45. I am not certain what you did.

b. I think it means count the values which are within +- one SD. Count means add them, then divide by the total sales.

- Math-statistics -
**Jodine**, Friday, December 12, 2008 at 11:15pmFor a i used my calc. The 1-Var Stats

- Math-statistics -

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