Data Analysis and Statistics

Find the median of this set of data.

14, 26, 15, 30, 12, 25 , 20

• 20

• 30

• 15

• 12

What is the IQR of this data set?

• 82

• 13

• 86.2

• 8.5

What is the median of this data set?

• 75

• 82

• 86

• 84

What is the mean of this data set?

7, 4, 8, 10, 3, 10

• 10

• 7

• 42

• 6

What type of graph is shown?

• Line plot

• steam and leaf plot

• histogram

• box plot

What is the mode(s) of the data set?

12, 13, 11, 10, 12, 13, 12, 10

• 12 , 13, and 10

• 10

• 13 and 10

• 12

Which question is a statistical question ?

• How many texts are sent a day by the students in your class?

• Do you send text messages every day?

• On average do you send more text messages on a weekday or weekend?

• None of the above

What is the mode(s) on this graph?

• 6

• 5

• 3 and 5

• 3

Which class has a range of 21?

• Class A

• Class B

• Neither

What is the shape of this graph?

• skewed right

• symmetrical

• skewed left