The heights (in cm) of 40 boys were measured and recorded as under:
Height (in cm
165 170 175 180
Number of boys | 9 8 11 12
Find the mean height
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7
Answer:
mean = sum of (height X no. of boys) / total no. of boys
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Mahiradcal:
do in graph paper
please tell me
how i can do it
sorry dear i don't have a graph paper
Answered by
8
◦•●◉✿ ˙·٠•●♥ •.¸♡ Answer:
Mean = xifi / fi
Step-by-step explanation:
see the pic for the solution
pls mark me as brainliest ♡¸.• ♥●•٠·˙
RS Aggarwal class 7 ch 21 ex 21c q number 15
Verified answer by expert teacher in maths.. ✿◉●•◦
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