Question

The mean of 20 observation is 13 if each of the vision is increased by 5 then find new mean

Answer 1

Answer:

25

Step-by-step explanation:

TheThe mean of 20 observation is 13

Therefore ,total value of observations

= 13×20=260

Now, each of the vision is increased by 5

so ,new value of total observations

= 260+ 5×13 = 325

Therefore the new mean = 325/13

= 25

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