Answer:
0.006946
Step-by-step explanation:
Given that :
W = normally distributed random variable
Mean(m) = 22
Variance = 25 ; standard deviation =√variance ;
Standard deviation (σ) = √25 = 5
Probability that W < 9.7
x = 9.7
Zscore = (x - m) / σ
Zscore = (9.7 - 22) / 5
Zscore = - 12.3 / 5
Zscore = - 2.46
P(Z < - 2.46) = 0.006946
