Calculate mean from the following data.
Size. 10. 20. 30. 40. 50. 60
Frequency. 7. 8. 12. 15. 5. 3
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The mean of the data is 32.4
Given:
Size. 10. 20. 30. 40. 50. 60
Frequency. 7. 8. 12. 15. 5. 3
To Find:
The mean of the data
Solution:
The size of the data can be noted as = x
The frequency of the data can be noted as = fx
Thus, determining fx -
x f. fx
10. 7 70
20. 8 160
30. 12 360
40. 15 600
50. 5 250
60. 3 180
50 1620
Calculating mean -
Mean = Sum of the terms/ Total number of terms
Mean = ∑fx/n
= 1620/50
= 162/5
= 32.4
Answer: The mean of the data is 32.4
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