Koala Population Quiz

A group of kangaroos were observed and the numbers of times they pooped was measured. The data is listed below:

0, 3, 2, 4, 4, 5, 5, 5, 6, 9, 12, 15, 30, 32, 34

What is the median (Q₂) of the above data set?

A group of kangaroos were observed and the numbers of times they pooped was measured. The data is listed below:

0, 3, 2, 4, 4, 5, 5, 5, 6, 9, 12, 15, 30, 32, 34

What is the lower quartile (Q₁) of the above data set?

A group of kangaroos were observed and the numbers of times they pooped was measured. The data is listed below:

0, 3, 2, 4, 4, 5, 5, 5, 6, 9, 12, 15, 30, 32, 34

What is the upper quartile (Q₃) of this data set?

A group of kangaroos were observed and the numbers of times they pooped was measured. The data is listed below:

0, 3, 2, 4, 4, 5, 5, 5, 6, 9, 12, 15, 30, 32, 34 What is the interquartile range (IQR) for the above data set?

A group of kangaroos were observed and the numbers of times they pooped was measured. The data is listed below:

0, 3, 2, 4, 4, 5, 5, 5, 6, 9, 12, 15, 30, 32, 34

Which of the following values is an outlier in the above data set?

A group of kangaroos were observed and the numbers of times they pooped was measured. The data is listed below:

0, 3, 2, 4, 4, 5, 5, 5, 6, 9, 12, 15, 30, 32, 34

Represent this data as a box plot.

Scientists want to see how quickly a plant grows under controlled conditions. They start with ten seedlings of the same height and give each a different measure of weekly fertiliser. They then measure the height of the plants after 6 weeks and record the data in the table below.

Record this data as a scatter plot.

Describe the correlation of this plot as positive, negative or neither.

• Positive

• Negative

• Neither

Are there any outliers in this data?

• Yes

• No

Consider the line segment joining the points (-2, 4) and (3, 6). What is the length of this line segment?

• 5

• sqrt(29)

• 10

• sqrt(13)