The number of classes in the frequency distribution table among the subsequent options for the weights (in grams) of 35 mangoes with the equal class intervals, one of them is 40- 45 (45 not included).

30, 40, 45, 32, 43, 50, 55, 62, 70, 70, 61, 62, 53, 52, 50, 42, 35, 37, 53, 55, 65, 70, 73, 74, 45, 46, 58, 59, 60, 62, 74, 34, 35, 70, 68.

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answer is D.

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Detailed Solution

It is provided with the values of 35 mangoes weight.
30, 40, 45, 32, 43, 50, 55, 62, 70, 70, 61, 62, 53, 52, 50, 42, 35, 37, 53, 55, 65, 70, 73, 74, 45, 46, 58, 59, 60, 62, 74, 34, 35, 70, 68.
Frequency is given by the number of times of occurrence of the data.
In the class of 30 - 35 lies 30, 32, 34. So the frequency of this class is 3.
In the class of 35 - 40 lies 35, 35, 37. So the frequency of this class is 3.
In the class of 40 - 45 lies 40, 42, 43. So the frequency of this class is 3
In the class of 45 - 50 lies 45, 45, 46. So the frequency of this class is 3.
In the class of 50 - 55 lies 50, 50, 52, 53, 53. So the frequency of this class is 5.
In the class of 55 - 60 lies 55, 55, 58, 59. So the frequency of this class is 4.
In the class of 60 - 65 lies 60, 61, 62, 62, 62. So the frequency of this class is 5.
In the class of 65 - 70 lies 65, 68. So the frequency of this class is 2.
In the class of 70 - 75 lies 70, 70, 70, 70, 73, 74, 74. So the frequency of this class is 7
Sketch the frequency distribution table by using the frequency shown above.
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