Question

Q12. The mean of 10
observations is 25. if each
observation is multiplied by 5,
find the new mean.द मीन ऑफ टेन ऑब्जरवेशन is5 रिजर्वेशन इज मल्टीप्लाई बाय 5 फाइंड द न्यू मीन ​

Answer 1

Answer:

125

Step-by-step explanation:

Let the numbers be x1, x2, x3..... x10

Mean of the above numbers is 25

(x1+x2+x3....x10)/10 = 25

(x1+x2+x3... x10) =250

Now, the new numbers are

5x1,5x2,5x3....5x10

(5x1+5x2+5x3....+5x10) = 5*250

(5x1+5x2+5x3....+5x10) = 1250

New mean

(5x1+5x2+5x3....+5x10)/10 = 1250/10 = 125