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Class 11 Maths Practice Test - Statistics - Analysis of Frequency Distributions
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Class 11 Maths Practice Test - Statistics

Class 11 Maths Practice Test - Statistics - Variance and Standard Deviation 

Class 11 Maths Practice Test - Statistics - Analysis of Frequency Distributions
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5 Questions

1. The following data shows the heights and weights of the students of class 11. Which of the following is correct?
HeightWeight
Mean170 cm55 kg
Variance130 cm225 kg2
"
2. If the standard deviation of a data is 820 and mean of the data is 50, find the coefficient of variation.
3. If standard deviation of a data is 40 and the coefficient of variation is 25600, then find the mean.
4. An analysis of the monthly wages paid to the workers of a form is given below. Calculate the total monthly wages.Average monthly wages 280
Variance of distribution of wages 10
5. If the coefficient of variation is 100 the mean of the data is 25, then find the standard deviation.

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