1. Terra Nova Practice Open-Ended Questions 5

2. Problem 1 Theresa has the following grades in her subjects this year: 93, 88, 87, 95, 92, 85. Her mother promised that if the mean of Theresa’s grades is 90 or better, she could go to the carnival with her friends. Her father said that if the median of Theresa’s grades was 92 or better, he would allow her to go to the water park with her friends. Did Theresa get to go to either the carnival or the water park? Explain.

4. Problem 2 This circle graph shows the average amount of times Julie, Kevin, Mike, and Nancy eat a meal or a snack in a typical week. 1/2 of the time, the girls drink a glass of water with their meal or snack, and 1/3 of the time the boys drink a glass of water with their meal or snack. Make a chart showing the number of glasses of water each student drinks with their meals and snacks in a typical week.

5. Problem 3 This frequency table shows the number of hours that it took everyone in Charlotte’s class to finish a science project. Find the mean, median, and mode of the number of hours.

6. Problem 4 The TV commercial stated that “2 out of 3 dentists recommend Bolt toothpaste.” Analyze this statement and comment on whether it is valid.

7. Problem 5 Paul’s teacher asked 5 classes of 8 th grade students the following question: How many of you students do not like math homework? This chart shows the results:

8. Problem 5 a) According to the information in the table, what percent of the students in Grade 8 do not like math homework? Show how you got your answer. b) Do you think the question asked of the 8 th grade students influenced how they answered? Explain.