Data Unit

How many more people 19 and under are in the French club than the Spanish club?

• 1

• 3

• 2

• 4

What information can you get from this graph?

• Mean, Median, Mode, Range

• Mean, Median

• Median, 1st Quartile, 3rd Quartile, Range

• 1st Quartile, 3rd Quartile

Which conclusion is accurate using the box-and-whisker plot?

• New York is usually warmer, but is less consistent

• San Antonio is usually warmer, but Seattle has more consistent temperatures

• Seattle is usually warmer and more consistent

• Seattle is usually warmer than New York, but New York is more consistent

A table shows the average of 3, 6, 4, 2, and 100. Is this data misleading, why?

• Yes, because 100 is an extreme outlier

• No, because all the numbers are less than 1000. 

• No, because 100 fits into the data set.

• Yes, because 2 is an outlier 

What is the median of the data set [3, 7, 9, 13, 15]?

• 7

• 9

• 11

• 13

What is the mean of the data set [10, 20, 30, 40, 50]?

• 20

• 25

• 30

• 35

The mean of four numbers is 75. If three of the numbers are 72, 76, and 77, what is the fourth number?

• 75

• 74

• 70

• 80

What is the median of the data set [4, 8, 6, 3, 9]?

• 4

• 6

• 8

• 9

Imagine Abigail, Benjamin, and Ethan are comparing their scores in a game. They scored {12, 15, 13, 19, 12, 16, 14} respectively in seven rounds. Can you help them find the median score?

• 14

• 15

• 13

• 12

Answer explanation

To find the median, first arrange the data set in ascending order: {12, 12, 13, 14, 15, 16, 19}. Since there are 7 values, the median is the middle value, which is 14.

A survey conducted in a school showed that 75 out of 300 students prefer online classes. What percentage of students prefer online classes?

• 25%

• 50%

• 75%

• 20%