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7 0

2 years ago

5 students participated in a push-up competition.

Wittaler [7]

Answer: 9

Step-by-step explanation:

Formula : Mean = $\dfrac{\text{Sum of observations}}{\text{Number of observaions}}$

Given: 5 students participated in a push-up competition.

The amount of push-ups each student completed is listed: 12, 7, 10, 11,5.

Mean = $\dfrac{12+7+10+77+5}{5}$

$=\dfrac{45}{5}=9$

Hence, the mean number of push-ups = 9

4 0

2 years ago

How many kilometres and metres are equal to 0.75 of 6km?​

How many kilometres and metres are equal to 0.75 of 6km?