Answer :
Mean = 0.30
Standard deviation = 0.01
X<0.32?
Using the formula, you get that Z=(0.32-0.30)/4.5 and Z=0.004
Find this value on your table (0.5000)
Then you have that P(X<0.32)= 0.5000
Standard deviation = 0.01
X<0.32?
Using the formula, you get that Z=(0.32-0.30)/4.5 and Z=0.004
Find this value on your table (0.5000)
Then you have that P(X<0.32)= 0.5000