Adult male heights have a normal probability distribution with a mean of 70 inches and a standard deviation of 4 inches. What is
the probability that a randomly selected male is more than 70 inches tall? Enter you answer in decimal form, e.g. 0.68, not 68 or 68%.
2 answers:
Answer: 0.5
Step-by-step explanation:
Given : Adult male heights have a normal probability distribution .
Population mean : 
Standard deviation: 
Let x be the random variable that represent the heights of adult male.
z-score : 
For x=70, we have

Now, by using the standard normal distribution table, we have
The probability that a randomly selected male is more than 70 inches tall :-

Hence, the probability that a randomly selected male is more than 70 inches tall = 0.5
Answer:
The probability that a randomly selected male is more than 70 inches tall is 0.5
Step-by-step explanation:
Mean height of adults =
Standard deviation = 
We are supposed to find the probability that a randomly selected male is more than 70 inches tall i.e. P(x>70)
Formula: 

Z=0
So, p value at z=0 is 0.5
So, P(x>70)=1-P(x<70)=1-0.5 =0.5
Hence the probability that a randomly selected male is more than 70 inches tall is 0.5
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