Mean of Raw Data

Q. Find the mode of 14, 25, 14, 28, 18, 17, 18, 14, 23, 22, 14, 18.
(2 marks)

Q.

What is the mean of the first ten natural numbers?

1. 4.5

2. 5.5

3. 6.5

4. 5

Q. Find the difference between the arithmetic means of all even and odd numbers between 50 and 60.

1. 2
2. 0
3. 3
4. 1

Q. If the mean of 5 , 8 , 9 , 6, 12 , p is 7, then find the value of p.

1. 7
2. 4
3. 10
4. 2

Q. Arnav scored 63 marks in English, 57 in Hindi, 82 in Mathematics, 55 in Social Science and x in Science. If the average he scored is 60, find the average of best of four scores.

1. 64.25
2. 64.50
3. 62.25
4. 64.25

Q. Which of the following is correct for the given data :-
1, 0, 2, 3, 5, 5, 6, 8, 10, 11, 12

1. Mean = mode = median
2. Mean = mode
3. Mean = 5
4. Mode = median

Q. Find the mean of the following observations: 20, 30, 40 and 50

1. 35
2. 25
3. 30
4. 20

Q.

Which of the following cannot be determined graphically?

1. Mean

2. Median

3. Mode

4. None of these

Q. Given Binod's salary for the past five months:
₹ 21450, ₹46200, ₹ 54500, ₹ 54500 and ₹ 54500
Find the mean of the Binod's salary for the past five months.

1. ₹ 46200
2. ₹ 46250
3. ₹ 46240
4. ₹ 46230

Q. The mean of 50 observations is 39. If one of the observations which was 23 was replaced by 43, the resulting mean will be

1. 40.6
2. 39.4
3. 38
4. 39