z score for 62 = (62 - 64)/3 = -0.67
z score for 70 = (70 - 64)/3 = 2
Hence,
Proportion between 62 and 70
= P(-0.67 < z < 2)
= 0.73
Option B is correct.
The gestation period for cats has an approximate mean of 64 days and a standard deviation...
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