Advertisements
Advertisements
Question
The mean of 15 observations is 32. Find the resulting mean, if the observation is: Decreased by 20%
Solution
Given that the mean of 15 observations is 32
resulting mean decreased by 20%
= 32 - `( 20 ) / (100 ) xx 32 `
= 32 - 6.4
= 25.6
APPEARS IN
RELATED QUESTIONS
The mean of 15 observations is 32. Find the resulting mean, if the observation is: Decreased by 7
The mean of 15 observations is 32. Find the resulting mean, if the observation is: Divided by 0.5
Find the mean of 8, 12, 16, 22, 10 and 4. Find the resulting mean, if the observations, given above, be: multiplied by 3 and then divided by 2.
The mean of 18, 24, 15, 2x + 1 and 12 is 21. Find the value of x.
The weight of the seven members of a family, in kilograms are given below:
20, 52, 56, 72, 64, 13, 80.
Find mean weight.
A test out of 25 marks was given to 16 students and marks scored are recorded below: 25, 8, 14, 20, 16, 22, 10, 15, 8, 7, 24, 18, 19, 6, 11, 14
In the report, marks were entered out of 50. What is the mean of the recorded marks in the report?
The mean of 16 natural numbers is 48. Find the resulting mean, if each of the number is increased by 5
The mean of 16 natural numbers is 48. Find the resulting mean, if each of the number is divided by 0.25
The mean monthly income of 8 men is Rs. 8079.75. A man whose monthly income is Rs. 8280 has also been taken into consideration. Calculate the mean monthly income of all the men.
The mean of 200 observations is 20. It is found that the value of 180 is wrongly copied as 280. Find the actual mean.
