Question

1. one week in october in iqaluit, nunavut, the daily high temperatures were -4.6 °c, -0.5 °c, 1.2 °c, 2.3 °c, -1.1 °c, 1.5 °c, and -3.0 °c. what was the mean daily high temperature that week?

Explanation:

Step1: Find the sum of temperatures

$(-4.6)+(-0.5)+1.2 + 2.3+(-1.1)+1.5+(-3.0)$
$=-4.6 - 0.5+1.2 + 2.3-1.1+1.5-3.0$
$=(-4.6-0.5-1.1 - 3.0)+(1.2 + 2.3+1.5)$
$=-9.2 + 5$
$=-4.2$

Step2: Divide by the number of days

There are 7 days. Mean = $\frac{-4.2}{7}=-0.6$

Answer:

$-0.6^{\circ}C$