Question

The temperature readings of one week were as follows: 1, 4, -1, 0, - 4, -4. The average temperature of the week was:

Answer 1

Answer:

average= sum of all observations/total no.of observations

=1+4+(-1)+0+(-4)+(-4)/2

=-2

Answer 2

Answer:

Average temperature reading of the week = $\rm{{\dfrac{-2}{3}}^{\circ}C}$

Step-by-step explanation:

Given :

Temperature reading of a week = 1,4,-1,0,-4,-4 °C

To find :

The average of the temperature reading

Taken :

To find the average temperature reading use this formula -:

$\boxed{\rm{A=\dfrac{1+4+(-1)+0+(-4)+(-4)}{6}}}$

Where,

A = Average

Solution :

$:\Rightarrow\rm{A=\dfrac{1+4+(-1)+0+(-4)+(-4)}{6}}$

Here, (+)×(-)=(-)

$:\Rightarrow\rm{A=\dfrac{1+4-1-4-4}{6}}$

Add the like terms then subtract

$:\Rightarrow\rm{A=\dfrac{(1+4)-(1+4+4)}{6}}$

$:\Rightarrow\rm{A=\dfrac{5-9}{6}}$

$:\Rightarrow\rm{A=\cancel{\dfrac{-4}{6}}}$

$:\Rightarrow\rm{A={\dfrac{-2}{3}}^{\circ}C}$

So , the average temperature reading is $\rm{{\dfrac{-2}{3}}^{\circ}C}$