M7 10.7 Comparing Populations

Identify the median (Measure of Center) for Test 1:

• 70

• 82

• 85

• 88

Identify the median (Measure of Center) for Test 2:

• 100

• 94

• 91

• 88

Find the range (measure of variation) for Test 1:

• 21

• 6

• 18

• 9

Find the range (Measures of Variation) for Test 2:

• 24

• 6

• 18

• 12

Find the IQR (Interquartile Range) for Test 1:

• 21

• 18

• 6

• 9

Find the IQR (Interquartile Range) for Test 2:

• 24

• 6

• 18

• 12

Are there any scores that both tests have in common?

• 76

• 88 only

• 88 and 91

• 94 only

Compare the samples using the measures of center:

• The medians are the same.

• The ranges are the same.

• The median of Test 2 is greater than the median of Test 1.

• The IQR of Test 2 greater than the IQR of Test 1.

Compare the samples using the measures of variation.

• The range of Test 2 is the same as the range of Test 1.

• The IQR of Test 1 is greater than the IQR of Test 2.

• The IQR of Test 1 is the same as the IQR of Test 2.

• The range of Test 1 is larger than the range of Test 2.

True or False: On each test, at least 25% of students scored below 82.

• True

• False