Module 2 Open-Ended Questions

1. A teacher gives a test to a class of 25 students. The grades are as follows:

40% of students receive a grade of C (test scores of 77% - 84%)
40% of students receive a grade of either B (85% - 93%) or D (70% - 76%)
20% of students receive a grade of either A (94% - 100%) or F (0% - 69%)

a. Invent 25 test scores, based on the information above.

b. From your data, determine the mean, median, and mode for the class.

c. Select and draw the best type of graph to display your data (attach your graph).

d. What is the probability that a student, picked at random, received an A?

2. Amir was offered a radio by one store at $80.00 - less a discount of 20% followed by a 10% discount. Another store had the same radio at $80.00 - less a 30% discount. Which is the better offer and by how much?