Answer:
it's T it's not e because the middle bit is small
Since, the variance calculated on 34 scores is equal to 14.94.
We have to determine the standard deviation.
Relationship between Variance and standard deviation is:
Standard deviation = 
Substituting the value of Variance, to evaluate the standard deviation.
We get,
Standard deviation = 
= 3.865
= 3.87
Therefore, the standard deviation is 3.87
Shouldn't the answer be: (-1,4),(1,4),(2,4),(-2,4)
7 1/5 = 36/5
6 2/5 = 32/5
36/5 - 32/5 = 4/5
a. 4/5