Draw histograms for the following frequency distributions :
Class mark Frequency
16 8
24 12
32 15
40 18
48 25
56 19
64 10
Statistics
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Question

Draw histograms for the following frequency distributions : Class mark | Frequency ------- | -------- 16 | 8 24 | 12 32 | 15 40 | 18 48 | 25 56 | 19 64 | 10

KnowledgeBoat · Accepted Answer

Since, the difference between the values of any two consecutive class marks is 8 (24 - 16). Therefore, subtract = 4, from each class mark to get the lower limit of the corresponding class interval and add 4 to each class mark to get the upper limit. Frequency distribution table : Class mark | Class | Frequency ------- | ------ | -------- 16 | 12 - 20 | 08 24 | 20 - 28 | 12 32 | 28 - 36 | 15 40 | 36 - 44 | 18 48 | 44 - 52 | 25 56 | 52 - 60 | 19 64 | 60 - 68 | 10 Steps of construction of histogram : 1. Since, the scale on x-axis starts at 12, a break (kink) is shown near the origin on x-axis to indicate that the graph is drawn to scale beginning at 12. 2. Take 1 cm along x-axis = 8 units. 3. Take 1 cm along y-axis = 5 units. 4. Construct rectangles corresponding to the above continuous frequency distribution table. The required histogram is shown in the below figure:

Class interval	Frequency
0 - 10	12
10 - 20	20
20 - 30	26
30 - 40	18
40 - 50	10
50 - 60	6

Class interval	Frequency
10 - 16	15
16 - 22	23
22 - 28	30
28 - 34	20
34 - 40	16

Class Interval	Frequency
10 - 15	10
15 - 20	15
20 - 25	17
25 - 30	12
30 - 35	10
35 - 40	8

Class interval	Frequency
10 - 19	23
20 - 29	16
30 - 39	15
40 - 49	20
50 - 59	12

Mathematics

Draw histograms for the following frequency distributions :
Class mark Frequency
16 8
24 12
32 15
40 18
48 25
56 19
64 10

Statistics

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Draw histograms for the following frequency distributions :Class markFrequency168241232154018482556196410

Statistics

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