Practice 1

1. Determine the mean.

$\frac{2\left(27\right)+28+4\left(29\right)+2\left(31\right)+32}{10}=\frac{292}{10}=29.2$

The average height of the plants is 29.2 cm.

2. Determine the median.

$$\begin{gathered} 27, 27, 28, 29, \boxed{29, \overline{)29}}, 29, 31, 31, 32 \\ \frac{29+29}{2}=29 \end{gathered}$$

The median is 29 cm.

3. Determine the mode.

The mode is 29 cm.

4. Determine the range.

$32–27=5$

The range is five cm.

5. For ten days, Natalee logged her daily practice time in hours for her piano teacher. The practice times were: $\left\{\frac{1}{2}, \frac{1}{4}, \frac{1}{2}, \frac{3}{4}, 1, \frac{1}{2}, 1, \frac{3}{4}, \frac{3}{4}, \frac{1}{2}\right\}$

6. Fourteen customers rated Charlie’s Chai and Coffee Company with one to five stars. The customer ratings were: $\left\{5, 5, 4, 4, 5, 5, 2, 4, 3, 5, 1, 2, 3, 4\right\}$

7. Talia has seven first cousins. The ages of Talia’s cousins are: $\left\{12, 15, 13, 16, 17, 15, 15\right\}$

8. The Math Club Fundraiser sold raffle tickets to win a new calculator. Each club member sold the following number of tickets:  $\left\{9, 7, 9, 5, 6, 7, 9, 10, 5, 8\right\}$