Study the table and answer the questions

155 सेमी या अधिक लम्बाई वाली लड़कियों की औसत ऊचाई बताये ।

Options

A. `158.7`
B. `159.8`
C. `160.4`
D. `162.6`

Explanation

Take value of class interval 155-1 60 and 160 -165 i.e. 157.5 and 1 62.5 Multiply them by their respective frequency and then divide by
total no. of girls `=(157.5xx 6+162.5xx5)/(11)`
`=(945+812.5)/(11)=(1757.5)/(11)=159.8cm`.