What is the probability<span> that an </span>18 year old man selected<span> at </span>random<span> is ... what is the </span>probability<span> that the </span>mean height<span> bar x is </span>between<span> 67 and 69 </span>inches<span>? c. ... approx </span>normally distributed<span> with </span>mean 68 inches<span> and std deviation </span>3 inches<span>? a. ... is used in stead of </span>standard deviation<span> as you have a </span>random<span> sample.</span>