Stats, please help?????? :) ?

Question

the average daily high tempreture recorded at a weathert station is 80 f during july. for a sample of six consecutive days in july, the difference between the recorded high and this average high were:

-10 -8 -2 6 4 10 (dataset a)

3.1 compute for this dataset the average difference and the standard deviation.

3.2. calculate the actual recorded tempretures on these six days: dataset b

3.3 calculate the average and standard deviation for dataset b

3.4 compare and discuss the standard deviations obtained for dataset a and b

Answer 1

a) Average difference is 0, Stdev is 8;

b) 70, 72, 78, 86, 84, 90

c) Average 80, STD 8

d) Average for b was stated in the question, b was obtained by adding average to average difference. stdev also the same, obviously the number set was just moved down the number line by 80.