Question

13. The heights (in cm) of 30 students of class IX are given below:
155, 158, 154, 158, 160, 148, 149, 150, 153, 159, 161, 148, 157, 153,
162, 159, 151, 154, 156, 152. 156. 160. 152, 147, 155, 163, 155, 157, 15
Prepare a frequency distribution table with 160-164 as one of the class

Answer 1

Prepared a frequency distribution table

Step-by-step explanation:

Correct Data:

155, 158, 154, 158, 160, 148, 149, 150, 153, 159, 161, 148, 157, 153,157

162, 159, 151, 154, 156, 152. 156. 160. 152, 147, 155, 163, 155, 157, 153

Class                       Frequency

145 - 149                    4

150 - 154                    9

155 - 159                   12

160 -164                    15

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Answer 2

Preparing Frequency Distribution Table For The Given Data:

• Given, one of the class is 160-164.
• Lowest value is 147 and the highest value is 163.
• Highest value - lowest value = 163 - 147 = 16
• Class interval = 164 - 160 = 4.
• Number of classes = 16/4 = 4

    Class           Frequency

  145 - 149                4

  150 - 154                8

  155 - 159                11

   160 - 164                5

Total                         28

Note: In the question 30 students were mentioned but observations are only 28. I omitted the last observation i.e, 15 as it is not relevant to the given data.