Data Analysis and Sampling 100% REVISION

Data Analysis and Sampling 100% REVISION In a high school league, there were 256 touchdowns made last year. If 64 games were played, what is the mean, or the average, number of touchdowns made per game - ANSWER 4 Sasha wants to know her average grade on her math tests. She earned a score of 70 on two tests, an 80 on one test, and a 90 on two tests. What is Sasha's mean score? - ANSWER 80 Brian has 5 marbles, Sarah has 9 marbles, Jimi has 4 marbles, and Juan has 6 marbles. They want to redistribute the marbles so that each person has the same number of marbles. If the marbles are redistributed, then how many should each person get? - ANSWER Each person should get 6 marbles Steven received scores of 70, 95, and 80 on his last three math tests. He needs a mean test score of 80 to qualify for the math team. How many points does he need on his last test to qualify for the team? - ANSWER - Steven needs 320 total points to have a mean score of 80. - Steven has 245 points so far. - Steven needs to score at least 75 points on his last test to qualify for the team. Dwight has 3 baseball cards, and Ellis has 9 baseball cards. If Dwight and Ellis put their baseball cards together and then divide them up equally, how many will each one of them have? - ANSWER 6 The table below shows the deliveries for Floral World for the week. What is the mean, or average, number of deliveries per day? - ANSWER A. 16 The students in the cooking club brought sugar to class. They each brought 3, 4, 5, 3, and 5 cups of sugar, respectively. They divided the sugar evenly so that each student received the same number of cups of sugar. How many cups of sugar did each student get? - ANSWER 4 Monica bowled three games. Her scores were 175, 142, and 133. What was her mean, or average, score? - ANSWER 150 Four students found the mean of the data set 26, 31, 39, 30, 16, 16, 18, 38. Which student found the correct mean? - ANSWER Ashrita's work Maria scored 72, 97, and 82 on her first three math tests. She wants to have a mean score of 82 for the quarter. How many points does she need on her last test to earn an 82 for the quarter? - ANSWER 77