Question 1. In a typical baseball game, a boy pitches a strike 5 out of every 7 pitches. In one inning of a game, Brett pitched 20 pitches.... What

Question 1. In a typical baseball game, a boy pitches a strike 5 out of every 7 pitches. In one inning of a game, Brett pitched 20 pitches.... What is the expected value? Round your answer to 2 decimal places

Question 2. A hairstylist is trying to teach 10 kids how to braid their hair. If she is able to successfully teach 3 out of 8 kids this skill, what is her standard deviation? Round your answer to 2 decimal place