Question

The table below gives the weight of 12 students find the mean weight of students

Answer 1

Answer:

70.25

Step-by-step explanation:

$mean = \frac{sum \: of \: all \: the \: weights}{number \: of \: observations} = \frac{(67 \times 4) + (70 \times 3) + (72 \times 2) + (73 \times 2) + (75 \times 1)}{4 + 3 + 2 + 2 + 1} = \frac{268 + 210 + 144 + 146 + 75}{12} = \frac{843}{12} = 70.25$

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Answer 2

Step-by-step explanation:

mean weight is 70.25kg