Mathematics: Help with this math equation

It could be $15 but I’m not sure...

Help with this math equation - id10319328, cvhufjbvbcxx9845

malayalatham3357

16.03.2022

i. Girls : 10 merits

ii. Boys : 11.4 merits

iii. The boys did better on average because the number of their mean merits received is higher than that girls.

Step-by-step explanation:

Mean = $\frac{sum of merits}{number of merits}$

Sum of merits received by boys = 5 + 10 + 19 + 22 + 13 + 10 + 1

= 80

number of merits = 7

Mean number of merits received by boys = $\frac{80}{7}$

= 11.4286

The mean number of merits received by boys is 11.4

Sum of merits received by girls = 6 + 11 + 15 + 16 + 12 + 10 + 0

= 70

number of merits = 7

Mean number of merits received by girls = $\frac{70}{7}$

= 10.0

The mean number of merits received by girls is 10.0

Therefore,

i. Girls : 10 merits

ii. Boys : 11.4 merits

iii. The boys did better on average because their mean merits is higher than that girls.

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