Answer: 0.5
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