7. The number of hours of sleep during school weeknights for a Year 8 class are recorded below.

6, 9, 7, 8, 7, 8

1

2

, 6

1

2

, 8, 7

1

2

, 7

1

2

, 8, 8

1

2

, 6

1

2

, 8, 8, 7, 7

1

2

, 8, 9, 8

a. Organise the data into suitable class intervals and display it as a frequency table.

b. Display the data as a histogram.

c. Comment on the sleeping habits of the Year 8 students.

d. Discuss whether you feel these sample results reflect those of Year 8 students generall

asked by guest
on Apr 22, 2025 at 6:50 pm



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