Advertisements
Advertisements
प्रश्न
The rainfall (in mm) in a city on 7 days of a certain week was recorded as follows:
| Day | Monday | Tuesday | Wednesday | Thursday | Friday | Saturday | Sunday |
| Rainfall (in mm) | 0.0 | 12.2 | 2.1 | 0.0 | 20.5 | 5.5 | 1.0 |
- Find the range of the rainfall in the above data.
- Find the mean rainfall for the week.
- On how many days was the rainfall less than the mean rainfall.
उत्तर
i. Range = (20.5 − 0.0) mm
= 20.5 mm
ii. Mean rainfall = `(0.0 + 12.2 + 2.1 + 0.0 + 20.5 + 5.5 + 1.0)/7`
= `41.3/7`
= 5.9 mm
iii. For 5 days (i.e., Monday, Wednesday, Thursday, Saturday, Sunday), the rainfall was less than the average rainfall.
APPEARS IN
संबंधित प्रश्न
Find the range of heights of any ten students of your class.
Find range of following data: 1, 0, 2, 3, 2, 6, 8, 10, 12, 12, 13.
The ages in years of 10 teachers of a school are:
32, 41, 28, 54, 35, 26, 23, 33, 38, 40
(i) What is the age of the oldest teacher and that of the youngest teacher?(ii) What is the range of the ages of the teachers?
The range of the data: 21, 6, 17, 18, 12, 8, 4, 13 is ______.
Some integers are marked on a board. What is the range of these integers?
The difference between the highest and the lowest observations of a data is called ______.
Range of the data is always from the data.
The range of the data 2, –5, 4, 3, 7, 6 would change if 2 was subtracted from each value in the data.
Given below are heights of 15 boys of a class measured in cm:
128, 144, 146, 143, 136, 142, 138, 129, 140, 152, 144, 140, 150, 142, 154.
Find the range of the given data.
Age (in years) of 6 children of two groups are recorded as below:
| Age (in Years) | |
| Group A | Group B |
| 7 | 7 |
| 7 | 9 |
| 9 | 11 |
| 8 | 12 |
| 10 | 12 |
| 10 | 12 |
- Find the mode and range for each group.
- Find the range and mode if the two groups are combined together.
