For the following two frequency distributions, the mean calculated for the first was 25.4 and that of the second was 32.5. Find the values of x and y.
Class : 10-20 20-30 30-40 40-50 50-60
Frequency-I: 20 15 10 x y
Frequency-II: 4 8 4 2x y

Question

For the following two frequency distributions, the mean calculated for the first was 25.4 and that of the second was 32.5. Find the values of x and y.
Class      : 10-20  20-30  30-40  40-50  50-60
Frequency-I: 20     15     10     x      y
Frequency-II: 4      8      4     2x     y

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This is a Paper-VII question worth 16 marks.

For the following two frequency distributions, the mean calculated for the first was 25.4 and that of the second was 32.5. Find the values of x and y. Class : 10-20 20-30 30-40 40-50 50-60 Frequency-I: 20 15 10 x y Frequency-II: 4 8 4 2x y

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For the following two frequency distributions, the mean calculated for the first was 25.4 and that of the second was 32.5. Find the values of x and y. Class : 10-20 20-30 30-40 40-50 50-60 Frequency-I: 20 15 10 x y Frequency-II: 4 8 4 2x y

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