Advertisements
Advertisements
Question
Find the mean of all factors of 10.
Solution
All factors of 10 are - 1, 2, 5,10
∴ Mean = `"Sum of factors"/"Total factors"`
= `(1+ 2 + 5 +10)/4`
=`18/4`
=`9/2`
= 4.5
∴ Mean = 4.5
APPEARS IN
RELATED QUESTIONS
Find the mean of 994, 996, 998, 1002 and 1000.
Find the mean of x, x + 2, x + 4, x +6, x + 8.
Following are the weights (in kg) of 10 new born babies in a hospital on a particular day:
3.4, 3.6, 4.2, 4.5, 3.9, 4.1, 3.8, 4.5, 4.4, 3.6. Find the mean x.
If M is the mean of x1 , x2 , x3 , x4 , x5 and x6, prove that
(x1 − M) + (x2 − M) + (x3 − M) + (x4 − M) + (x5 — M) + (x6 − M) = 0.
Durations of sunshine (in hours) in Amritsar for first 10 days of August 1997 as reported by
the Meteorological Department are given below: 9.6, 5.2, 3.5, 1.5, 1.6, 2.4, 2.6, 8.4, 10.3, 10.9
(i) Find the mean ЁЭСЛ ╠Е
(ii) Verify that = `sum _ ( i = 1)^10`(xi - x ) = 0
Find the median of the following data (1-8)
133, 73, 89, 108, 94, 1O4, 94, 85, 100, 120
Find the value of p, if the mean of the following distribution is 20.
| x: | 15 | 17 | 19 | 20+p | 23 |
| f: | 2 | 3 | 4 | 5p | 6 |
The monthly salaries in rupees of 30 workers in a factory are given below.
5000, 7000, 3000, 4000, 4000, 3000, 3000, 3000, 8000, 4000, 4000, 9000, 3000, 5000, 5000, 4000, 4000, 3000, 5000, 5000, 6000, 8000, 3000, 3000, 6000, 7000, 7000, 6000, 6000, 4000
From the above data find the mean of monthly salary.
A child says that the median of 3, 14, 18, 20, 5 is 18. What doesn’t the child understand about finding the median?
A total of 25 patients admitted to a hospital are tested for levels of blood sugar, (mg/dl) and the results obtained were as follows:
| 87 | 71 | 83 | 67 | 85 |
| 77 | 69 | 76 | 65 | 85 |
| 85 | 54 | 70 | 68 | 80 |
| 73 | 78 | 68 | 85 | 73 |
| 81 | 78 | 81 | 77 | 75 |
Find mean, median and mode (mg/dl) of the above data.
