Question

The sum of 20 observations is 300 .Two observations 13 and 17 are discard then mean of remaining observations is .............​

Answer 1

Step-by-step explanation:

sum of two observation = 300

no. of observation= 20*300=6000

discard nos. are 13 and 17

Now. no of observation=6000-(13+17)=5970

new sum of observation =5970/8=332 approxx