Question

mean of 50 observations is same as the mean of observations after an observation 45 is dropped..what is the mean of 50 observations​

Answer 1

Step-by-step explanation:

According to the Question : ⇒ [( 50x - 45)/49 ] x. ⇒ 50x - 45 = 49x. ⇒ x = 45. Therefore , From a series of 50 observations an observation of value 45 is dropped but the mean remain same , then the mean of 50 observations is 45.