.33 1/3 and 1/3

decimal form and fraction form

.66 2/3 and 2/3

decimal form and fraction form

.16 2/3 and 1/6

decimal form and fraction form

.83 1/3 and 5/6

decimal form and fraction form

.20 and 1/5

decimal form and fraction form

.40 and 2/5

decimal form and fraction form

.60 and 3/5 

decimal form and fraction form

.375 and 3/8

decimal form and fraction form

.625 and 5/8

decimal form and fraction form

Distribution A :[1, 2.5,4,5.5,7]

Distribution B: [1,3,4,5,7]

standard deviation of A is greater than B because 2.5 and 5.5 are further away than 3 and 5 from the mean

4!