Single Variable Data and Bivariable Statistics

The minimum score in the data is:

(hint: refer to Example 9 from page 253)

• 3

• 32

• 2

• 25

The maximum score in the data is

(hint: refer to Example 9 from page 253)

• 7

• 71

• 41

• 56

Answer explanation

Refer to Example 9 from Textbook page 253

The interquartile range(IQR) is:

(hint: refer to example 14 on page 265)

• 3

• 5

• 12

• 0

The outlier is:

• 5

• 0

• 12

• 10

The median is:

• 6

• 12

• 3

• 5

The variables x and y in the scatter plot could be described as having:

(hint: refer to page 273)

• weak negative correlation

• weak positive correlation

• strong negative correlation

• strong positive correlation

The variables x and y in the scatter plot could be described as having:

(hint: refer to page 273)

• weak negative correlation

• weak positive correlation

• no correlation

• strong positive correlation

The variables x and y in the scatter plot could be described as having:

(hint: refer to page 273)

• no correlation

• strong positive correlation

• weak negative correlation

• mutual relationship

Sebastian drinks the following number of cups of coffee each day a week.

4 5 3 6 4 3 3

What is the mean number of cups of coffee Sebastian drinks each day?

• 4

• 3

• 6

• 5

Eight students compare the amount of pocket

money they receive. The data are as follows.

$12 $15 $12 $24 $20 $8 $50 $25

Find the range of pocket money received.

(hint: range=highest score- lowest score)

• $42

• $50

• $15

• $12