Question

The water bill (in rupees) of 30 houses in a locality are given below. Construct a
grouped frequency distribution with class size 15.
30|33|45 | 54 | 74 | 78 | 108 | 112| 66| 76| 88 |40| 14 |20 |15|66 |75|84 | 95 | 96 | 102| 110| 88| 74 | 112 | 14 |34 | 44
​

Answer 1

Answer:

bill(in rs.)./tally marks./frequency

• 0-15. ||. 2
• 15-30. ||. 2
• 30-45. |||||. 5
• 45-60. ||. 2
• 60-75. ||||. 4
• 75-90. ||||| |. 6
• 90-105. |||. 3
• 105-120. ||||. 4

total. 28

the data provided in the question is only for 28 houses so this is the grouped frequency table for 28 house and no 30.

Answer 2

Answer:

BILL (IN ₹) / TALLY MARKS / FREQUENCY

• 0-15 || 2
• 15-30 || 2
• 30-45 ||||| 5
• 45-60 || 2
• 60-75 |||| 4
• 75-90 |||||| 6
• 90-105 ||| 3
• 105-120 |||| 4

HERE IS YOUR ANSWER MATE.