Question

find the mean of the integers.

1. -3, -8, 12, -15, 9
2. -54, -32, -70, -25, -65, -42

Explanation:

Step1: Calculate the sum of the integers

For the first set of integers \(-3,-8,12,-15,9\):

$$
LATEXBLOCK0
$$

For the second set of integers \(-54,-32,-70,-25,-65,-42\):

$$
LATEXBLOCK1
$$

Step2: Calculate the number of integers

For the first set, the number of integers \(n_1 = 5\). For the second set, the number of integers \(n_2=6\)

Step3: Calculate the mean

The mean formula is \(\bar{x}=\frac{\sum_{i = 1}^{n}x_i}{n}\)
For the first set: \(\bar{x}_1=\frac{-5}{5}=-1\)
For the second set: \(\bar{x}_2=\frac{-288}{6}=-48\)

Answer:

The mean of \(-3,-8,12,-15,9\) is \(-1\). The mean of \(-54,-32,-70,-25,-65,-42\) is \(-48\)