Mean, Median, Mode, and Range Using Diagrams

What is the range of the data set?

• 1

• 4

• 2

• 6

What is the RANGE?

• 100

• 28

• 72

• 15

What is an estimate of mean for the given frequency table?

• 39.47

• 38.25

• 39.20

• 38.96

What is the MODE?

• 72

• 72, 87

• 87, 100

• 72, 87, 100

How will you be able to find the median class of the data above?

• Find the highest frequency.

• Divide the total frequency by 2.

• Divide the total frequency by 2 then find where it belongs to the cumulative frequency.

• Find the cumulative frequency of the highest frequency value.

Nam owns a used car lot. He checked the odometers of the cars and recorded how far they had driven. He then created both a histogram and a box plot to display this same data (both diagrams are shown below). Which display can be used to find that the median distance was approximately 140,000km?

• The histogram

• The box plot

Consider the scores of the top 10 qualifiers for a scholarship: 92, 93, 95, 90, 89, 92, 94, 95, 91 and 96. What is the range of the scores?

• 6

• 7

• 8

• 9

Miss Grace has just given a math exam and wants to calculate the 'range' of performance of her students. What must she do?

• Identify the central score

• Find the score that occurs most often

• Identify how far from average each score is

• Subtract the lowest score from the highest score

What is the median score of the set 9, 10, 13, 14, 15, 18, 23, 27, and 30?

• 13

• 14

• 15

• 16