Question

2. The table shows the amount of electricity
used in Majeed's house for some
months. What is the average amount of
electricity used per month? Which are the
months on which usage is more than the
average?
month unit
january 85
february 90
march 75
april 82
may 78​

Answer 1

Answer:

2. The table shows the amount of electricity

used in Majeed's house for some

months. What is the average amount of

electricity used per month? Which are the

months on which usage is more than the

average?

month unit

january 85

february 90

march 75

april 82

may 78

Answer 2

• Average electricity used is 82 units
• January and April are the months on which the usage was more than the average

GIVEN

Electricity used in -

January = 85

February = 90

march = 75

April = 82

may = 78

TO FIND

• Average of electricity used
• Months in which usage is more than the average.

SOLUTION:

We can simply solve the problem as under -

To calculate the average of units of electricity used we need to take out the arithmetic mean of the electricity used in the specified months.

Arithmetic mean = sum of values/total number of values

putting the values in the above formula we have,

$Arithmetic \: mean = \frac{85 + 90 + 75 + 82 + 78}{5}$

=

$\frac{410}{5}$

= 82

So, Average electricity used is 82 units

Since, 90 and 85 are greater than 82

Therefore, January and April are the months on which the usage was more than the average

#Spj2