TEST SCORES The table shows the number of points each student in Will's study group earned on a recent math test. There were 88 points possible on the test. Express all answers to the nearest tenth of a percent.
Name
wa
Cheng
Penny
68
Minowa
87
Rob
75
Score
72
81
a. Find Will's percent correct on the test.
b. Find Cheng's percent correct on the test.
c. Find Rob's percent correct on the test.
d. What was the highest percentage? The lowest?

31. PET STORE In a pet store, 15% of the animals are hamsters. If the store has 40 animals, how many of them are hamsters,

Apsychology student wishes to investigate differences in political opinions between business majors and political science majors at her college. she randomly selects 100 students from the 260 business majors and 100 students from the 180 political science majors. does this sampling plan result in a simple random sample? why or why not? no, because each group of 200 students in the sample does not have the same chance of being selected. yes, because each group of 200 students in the sample has the same chance of being selected. no, because each individual student does not have an equal chance of being selected. yes, because each individual student has the same chance of being selected.