A survey regarding the heights in (cm) of 51 girls of class X of a school was
conducted and the following data was obtained. Find
the mean using the formulae.
Height (in cm) Number of Girls
Less than 140 4
Less than 145 11
Less than 150 29
Less than 155 40
Less than 160 46
Less than 165 51
Answers
Answered by
1
mean= sum of observation/number of observation
= 140+145+150+155+160+165/51
=915/51
=17.94
Step-by-step explanation:
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Answered by
2
Answer:
mean= sum of observation/number of observation
= 140+145+150+155+160+165/51
=915/51
=17.94
Step-by-step explanation:
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