Statistics

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

• 7

• 7.44

• 8

• 7 and 8

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

• 7

• 7.44

• 8

• 7 and 8

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

• 7

• 7.44

• 8

• 7 and 8

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

• 7

• 7.44

• 8

• 7 and 8

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

• 13

• 6.5

• 3

• 42

What was the most common IQ range?

• 91-100

• 111-120

• 12-130

• 101-110

How many data points are greater than 34?

• 10

• 11

• 12

• 13

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

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

• 7609

• 8924.5

• 2708

• 5416

Say 'TRUE' or 'FALSE'
Mean, Median, Mode of a grouped data are always equal 

• TRUE
• FALSE