find the airthmetic mean of the following frequency distribution: class interval:25-29,30-34,35-39,40-44,45-49,50-54,55-59.Frequency:14,22,16,6,5,3,4.
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arthematic mean is 29
frequency 22
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class. frequency. xi. fixi
25-29. 14. 27. 378
30-34. 22. 32. 704
35-39. 16. 37. 592
40-44. 6. 42. 252
45-49. 5. 47. 235
50-54. 3. 52. 156
55-59. 4. 57. 228
total 70. total-2545
Am is 2545÷70
=36.3571
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