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4) A small company has 130 people working in full-time, and a summary of leave in a certain month was found as follows: Number of days on lcave 01 Number of staffs 5 6 10 7 47 33 0 18 15 i. Find the sample standard deviation of number of days on leave by a staff. ji. Find the sample median of the number of days on leave by a staff. k. What is the first quartile of the number of days on leave by a staff? l. What proportion o a staff? m. For what proportion of the staffs was taken leave more than one standard deviation greater than the mean number of days on leave by a staff? For what proportion of the staffs was taken leave within one standard deviation of the mean? n.

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Answer #1

Using formula of

Mean = FX/n

Standard deviation =√{ f(x-x bar)^2 /n }

х. 33.38 33302 23. 17 26 o 162 0262 O 2 . 162 2 3522 1.33 9 162 I o 4 2 i30 F(X - 129 .961median can be found by dividing number of frequency by 2 and that lies in which table represent median

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