Stat Quiz 1.4-1.7

Calculate the MEAN for the data set: 6, 7, 12, 8, 7, 4, 8, 8, 7

• 7

• 7.44

• 8

• 7 and 8

Tags

CCSS.6.SP.A.3

CCSS.6.SP.B.5

Calculate the MEDIAN for the data set: 6, 7, 12, 8, 7, 4, 8, 8, 7

• 7

• 7.44

• 8

• 7 and 8

Tags

CCSS.6.SP.A.2

CCSS.6.SP.A.3

CCSS.6.SP.B.5

Calculate the RANGE for the data set: 6, 7, 12, 8, 7, 4, 8, 8, 7

• 7

• 7.44

• 8

• 7 and 8

Tags

CCSS.6.SP.A.2

CCSS.6.SP.A.3

CCSS.6.SP.B.5

How many 7th graders had an IQ score in the 81-90 range?

• 13

• 6.5

• 3

• 42

Tags

CCSS.6.SP.A.1

CCSS.6.SP.A.2

CCSS.6.SP.B.4

CCSS.6.SP.B.5

What was the most common IQ range?

• 91-100

• 111-120

• 12-130

• 101-110

Tags

CCSS.7.SP.A.1

CCSS.7.SP.A.2

How many data points are greater than 34?

• 10

• 11

• 12

• 13

Tags

CCSS.6.SP.A.1

CCSS.6.SP.A.2

CCSS.6.SP.B.5

Calculate the 5 number summary for the following data. You may use your graphing calculator.

• 1791, 3162, 6163, 8578, 9400

• 1791, 3815, 6472, 8924.5, 9400

• 6197.44

• 7609

Tags

CCSS.6.SP.A.2

CCSS.6.SP.A.3

CCSS.6.SP.B.5

Find the Inter-Quartile Range (IQR). You may use your graphing calculator.

• 7609

• 8924.5

• 2708

• 5416

Tags

CCSS.6.SP.A.1

CCSS.6.SP.A.2

CCSS.6.SP.A.3

CCSS.6.SP.B.5

On a recent test, one class of 26 students had a mean score of 78%, while another class of 32 students had a mean score of 86%. What is the overall mean of the two classes combined?

• 82

• 82.4

• 81

• 83

Tags

CCSS.7.EE.B.3

CCSS.7.NS.A.1

CCSS.7.NS.A.3

CCSS.7.SP.B.4

Which measure of central tendency would best represent this data?

• Mean

• Median

• Mode

• Range

Tags

CCSS.6.SP.A.1

CCSS.6.SP.A.2

CCSS.6.SP.A.3

CCSS.6.SP.B.5