Math, asked by ankitsharma1948, 3 months ago

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 sjpanda1978
1

mean= sum of observation/number of observation

= 140+145+150+155+160+165/51

=915/51

=17.94

Step-by-step explanation:

please mark me the brainliest

Answered by BrycenCabitac
2

Answer:

mean= sum of observation/number of observation

= 140+145+150+155+160+165/51

=915/51

=17.94

Step-by-step explanation:

Similar questions