Dot Plot and Measures of Center

If 10 is added to every value in a set of data, what will happen to the value of the median?

• it will increase by 10

• it will decrease by 10

• it will stay the same

• it will both increase and decrease

calculate the median for the following set of scores

45, 69, 69, 87, 88, 92, 99, 100

• 87

• 55

• 87.5

• 99

The mode score on the 6th grade math test was 94! Which of these interpretations MUST be correct?

• 94 was the highest score on the test.

• More students received a 94 than any other score

• No student scored below a 94

• A score of 91 was slightly below average.

A data set consists of the numbers 2, 2, 5, 6 and 15.  Which statement is true for this data?

• median > mean

• mean = mode

• mode < median

• median = mode

What is the range?

• average

• biggest-smallest

• the middle #

• happening the most

The dot plot above shows the heights of 15 basketball players at NGHS. What percentage of the students are above 5'6 feet tall?

• 26.7%

• 40%

• 73.3%

• 80%

What is the median in the dot plot above?

• 7.5

• 15

• 5'8

• 5.9

What is the median height of the softball players in the dot plot above?

• 5'4

• 7.5

• 15

• 5'3.5

What is the mean, median, and mode of the dot plot above?

• 3.3, 1, 1

• 2.6, 1.5, 1

• 2.6, 10, 1

• 2.6, 1.5, 0 & 1

• 52, 10. 1

What is the mean, median, and mode of the dot plot above?

• 3.55, 3.5, 3

• 3, 3, 3

• 3.55, 3, 3

• 71, 3.5, 3

• 2.5, 3.5, 3