Question

1) Calculate mean yearly temperature using the data in the chart below. Give the answer to two decimal places.

Answer 1

Answer:

(a) Mean yearly temperature = 10.58

(b) $July = 24^\circ C$

Explanation:

Given:

The attached chart

Solving (a): The mean yearly temperature.

This is calculated as:

$\bar x = \frac{\sum x}{n}$

$\bar x = \frac{-5 + 2 + 6 + 10+15 + 22+24+21+17+12+6-3}{12}$

$\bar x = \frac{127}{12}$

$\bar x = 10.58$

Solving (b): The mean July temperature.

From the chart:

$July = 24^\circ C$