Question

the weight of 10 boys from a team are recorded as follows: 55,53,48,47,54,50,49,64,45,55. find the mean​

Answer 1

Answer:

52 kg

Step-by-step explanation:

Mean = Sum of weights of all boys/Total number of boys

          = 55 + 53 + 48 + 47 + 54 + 50 + 49 + 64 + 45 + 55/10

          = 520/10

          = 52 kg

Hope it helps you...

Answer 2

Given: Observations of weights of 10 boys.

To find: The mean.

Answer:

Mean is the average of all the observations.

Formula to do so:

$\tt Mean\ =\ \dfrac{Sum\ of\ all\ observations}{Total\ number\ of\ observations}$

Observations: 55, 53, 48, 47, 54, 50, 49, 64, 45 and 55.

Total number of observations: 10.

Using the values above in the formula,

$\tt Mean\ =\ \dfrac{55\ +\ 53\ +\ 48\ +\ 47\ +\ 54\ +\ 50\ +\ 49\ +\ 64\ +\ 45\ +\ 45\ +\ 55}{10}\\\\\\Mean\ =\ \dfrac{520}{10}\\\\\\Mean\ =\ 52.$