10 3 Random Outcomes Twenty randomly chosen high

10. 3 Random Outcomes Twenty randomly chosen high school students were asked to estimate the percent of students in their school who are planning to attend college. Base your answers to the questions on their responses. 25 45 60 90 70 75 50 33 35 20 65 65 55 80 85 70 65 50 75 60 What are the chances that the next student asked will give an estimate of at least 75%? If there are 4500 students in this high school, how many students do you think will give an estimate greater than or equal to 50%? Are we calculating theoretical or experimental probabilities?

10. 3 Random Outcomes Suppose 250 people have applied for 15 job openings at a chain of restaurants. What fraction of the applicants will get a job? What fraction of the applicants will not get a job? Assuming all applicants are equally qualified and have the same chance of being hired, what is the probability that a randomly selected applicant will get a job?

10. 3 Random Outcomes The star hitter on the baseball team at City Community College had a batting average of. 375 before the start of a three-game series. (Note: Batting average is calculated by dividing hits by times at bat; sacrifice bunts and walks do not count as times at bat. ) During the games, he came to the plate to bat eleven times. In these eleven plate appearances, he walked twice and had one sacrifice bunt. He either got a hit or struck out in his other plate appearances. If his batting average was the same at the end of the three-game series as at the beginning, how many hits did he get?

10. 3 Random Outcomes The following table shows the population of Suzie’s 5 th grade class by hair and eye color. Eye Color Total 10 9 11 1 31 Blue 4 1 2 1 8 Green 3 5 3 0 11 Brown 1 2 5 0 8 Hazel 2 1 1 0 4 Blonde Black Brown Red Total Hair Color What is then P( green eyes, black hair)= What is P(brown eyes or green eyes)=