Question

heights of 12 students are given below : 159,148,138,150,165,166,145,152,155,160,147and 151 . find mean and medain of data ​

Answer 1

Step-by-step explanation:

Mean =159+148+138+150+165+166+145+152+155+160+147+151/12

=1836/12

= 153(Ans)

Median= n/2

=12/2

=6th term

=166 (Ans)

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Answer 2

Answer:

Mean = 140
Median = 151.5

Step-by-step explanation:

Median = middle term

1,138,145,148,150,151,152,155,159,160,165,166

In the case of even no. of terms median = sum of middle terms/2

                                                                   = 151+152/2

                                                                   =303/2

                                                                   =151.5

Mean = sum of the terms/no. of terms

=1+128+145+148+150+151+152+155+159+160+165+166/12

=1680/12

=140.

Hope it helps! :)