A certain country's postal service currently uses 6-digit zip codes in most areas. how many zip codes are possible if there ar
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Let X be the normal variable with mean μ =50 and standard deviation σ =2
We have to find probability that x is between 47 and 54
P(47 < X < 54) = P(X < 54) - P(X < 47)
= -
= P(Z < 2) - P(Z < -1.5)
Using standard normal z score table to find probabilities we get
P(Z < 2) = 0.9772
P(Z < -1.5) = 0.0668
P(47 < X < 54) = P(Z < 2) - P(Z < -1.5)
= 0.9772 - 0.0668
P(47 < X < 54) = 0.9104
The probability that x is between 47 and 54 is 0.9104
Answer:
40.53%
Step-by-step explanation:
Here, New Value = 960÷100,000
Old Value = 190÷ 100,000
∴
⇒ Percentage Increase = 40.53%
Thus, percent increase in the male incarceration rate during given period is 40.53%.