That would be 8, its in the center so forget 9 or 7.
CALCULATE 5/8 + 3 1/4 x -3/6 - 2 5/12 = -3 5/12
Answer: a) The probability is approximately = 0.5793
b) The probability is approximately=0.8810
Step-by-step explanation:
Given : Mean : 
Standard deviation : 
a) The formula for z -score :

Sample size = 1
For x= 63 in. ,

The p-value = 

Thus, the probability is approximately = 0.5793
b) Sample size = 35
For x= 63 ,

The p-value = 

Thus , the probability is approximately=0.8810.
Answer:
B
Step-by-step explanation:
below 0 is negative
so -15