Question

8. 30 persons were asked about the number of hours they watched TV per day. The results were as follows:
9.1, 3.2, 1.5, 5.0, 5.2, 0.4, 6:3, 1.6, 3, 3.9, 8.4, 8.8, 2.4, 5.8, 2.5, 5,7,
2.0, 4.1, 8.4, 1.0, 6.6, 2.7, 2.9, 10.0, 11.6, 2.9, 4,2, 0.8, 3.0, 7.8
a) Construct a frequency distribution table class width 3 and starting with interval 0-3.
b) Find the percentage of people in the survey who spend more than 6 hours but less than or equal to 12
hours per day watching TV.​

Answer 1

Answer:

Step-by-step explanation:

From the given table, number of children who watched tv more than 10 hours are  number of children who watched within 10−15 and 15−20 hours.

Therefore, number of children who watched tv more than 10 hours =4+2=6 hours