Question

If the weights of five chicks in kilograms are 2.5, 2.0, 4.2, 3.0, and 9.3, then the mean weight of the chicks are A. 3.5kg B. 4.2kg C. 4.0kg D. 3.0kg

Answer 1

Answer: 4.2 kg

Step-by-step explanation: the mean formula is the total of the values divided by the number of values which equals: 2.5 + 2.0 + 4.2 + 3.0 + 9.3 = 21 ÷ 5 ( the number of chicks) = 4.2kg.

Answer 2

B

Explanation:

The mean is calculated as

mean =
`(sum)/(count)`

=
`(2.5+2.0+4.2+3.0+9.3)/(5)`

=
`(21)/(5)` = 4.2 Kg → B