Please solve Q(32) Ans. (i) Firm AQ.30 You are provided with the following raw sums in a statistical investigation oftwo variables, X and Y:(ii) Firm B.ΣΧ- 235 , ΣΥ-250,EX? = 6750,ΣΥ6840Ten pairs of values are included in the survey. Compute the standard deviationof the X andY variables.Ans. S.D.(X) = 11.08, S.D.(Y) = 7.68Q.31 The mean of 200 items is 48 and their standard deviation is 3. Find the sumand sum of squares of all these items.Ans. ΣΧ -9600, ΣΧ= 462600%3DQ.32 A computer calculated mean and standard deviation from 20 observations as42 and 5 respectively: It was later discovered at the time of checking that ithad copied down two values as 45 and 38, whereas the correct values were 35and 58. Find correct value of coefficient of variation.Ans. 14.65 %Q.33 A student calculated the values of mean and standard deviation of 25observations as 20 and 4 respectively. It was later discovered at the time ofchecking that he had copied two values as 7 and 18 while the correct valueswere 13 and 17. Find the correct value of coefficient of variation.Ans. 16.68%

Name: Please solve Q(32) Ans. (i) Firm AQ.30 You are provided with the follo
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Description: Please solve Q(32) Ans. (i) Firm AQ.30 You are provided with the following raw sums in a statistical investigation oftwo variables, X and Y:(ii) Firm B.ΣΧ- 235 , ΣΥ-250,EX? = 6750,ΣΥ6840Ten pairs of values are included in the survey. Compute the stan