Question

the mean of 20 observation is 50.if each observation increase by 5,then what will be new mean​

Answer 1

Step-by-step explanation:

Means of 20 obsevation = 20

If increased by 5

New mean = (5 x 50) /20

= 25/2

= 72.5

Please mark as branliest plsplsplspslsplz

Answer 2

Answer: 75.5

Step-by-step explanation: Mean = Sum of observations/Number of observations

Therefore, M = S/N

50 = S/20 if mean of 20 observations is 50.

Therefore, 50*20 = S

S = 1000

If each observation is increased by 5,

Sum will be increased by 20*5 (number of observations*increase)

Therefore, sum = 1000 + 20*5 = 1000+100 = 1100

Therefore, new mean = 1100/20

Hence, new mean is 75.5.

Hope you found this informative, if you did please mark as Brainliest Answer :)

~Arsheya