Question

From a series of 50 observations, an observation with
the value of 45 is dropped, but the mean remains
the same. What was the mean of 50 observation?


(2) 49
(3) 45 ​

Answer 1

Answer:

45 is the answer

Step-by-step explanation:

Let sum of all observations be x

Total no of observations is 50, so to find mean we have to divide the sum of all observations by total no of observations

• x/50 = 45 (given in option)
• x = 50×45
• x = 2250

To verify this, we will divide 2250 by 5 to assure that the mean remains same...

Answer 2

Answer:

s 45 is a correct answer