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प्रश्न
Mean of the data is always from the given data.
विकल्प
True
False
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उत्तर
This statement is False.
Explanation:
It is not compulsory that mean of the data is always from the given data. It may or may not be the observation from given data.
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संबंधित प्रश्न
There are 40 students in a class, out of them 15 are boys. The mean of marks obtained by boys is 33 and that for girls is 35. Find out the mean of all students in the class.
In a week, temperature of a certain place is measured during winter are as follows 26°C, 24°C, 28°C, 31°C, 30°C, 26°C, 24°C. Find the mean temperature of the week
In a class test in mathematics, 10 students scored 75 marks, 12 students scored 60 marks, 8 students scored 40 marks and 3 students scored 30 marks. Find the mean of their score
In a research laboratory scientists treated 6 mice with lung cancer using natural medicine. Ten days later, they measured the volume of the tumor in each mouse and given the results in the table
| Mouse marking | 1 | 2 | 3 | 4 | 5 | 6 |
| Tumor Volume (mm3) | 145 | 148 | 142 | 141 | 139 | 140 |
Find the mean
The algebraic sum of the deviations of a set of n values from their mean is
The mean of a, b, c, d and e is 28. If the mean of a, c and e is 24, then mean of b and d is
The mean of 5, 9, x, 17 and 21 is 13, then find the value of x
Arithmetic mean of 15 observations was calculated as 85. In doing so an observation was wrongly taken as 73 for 28. What would be correct mean?
Let x, y, z be three observations. The mean of these observations is ______.
In a class of 100 students there are 70 boys whose average marks in a subject are 75. If the average marks of the complete class is 72, then what is the average of the girls?
