The daily temperatures for a week during January in Copenhagen were :-

Question

-3 ºC, 4 ºC, 3 ºC, 0 ºC, -5 ºC, -2 ºC, -4 ºC



( a ) Find the median

( 2 )

( b ) Calculate the mean (average)

Answer 1

(a) To find the median, we first need to arrange the temperatures in ascending order:

-5 ºC, -4 ºC, -3 ºC, -2 ºC, 0 ºC, 3 ºC, 4 ºC

The middle value is 0 ºC, so the median temperature is 0 ºC.

(b) To calculate the mean, we add up all the temperatures and divide by the total number of temperatures:

-5 + (-4) + (-3) + (-2) + 0 + 3 + 4 = -7

-7 divided by 7 (the total number of temperatures) is -1.

Therefore, the mean temperature is -1 ºC.