Question

the median of 27 observations is 18 three more obseravtion 16 18 and 50 are added to this obseravtions what os the median of this 30 obseravtions​

Answer 1

Answer:

19

Step-by-step explanation:

Given that mean of 27 observations is 18

Therefore, 18=

27

sum of the 27 observations

⟹sum of the 27 observations=27×18=486 ------(1)

Given that three more observation 16,18,50 are added.

Therefore, mean=

30

sum of the 27 observations+16+18+50

⟹mean=

30

sum of the 27 observations+84

⟹mean=

30

486+84

(from (1))

⟹mean=

30

570

=19