The weights (in grams) of 40 oranges picked at random from a basket are as follows:
40, 50, 60, 65, 45, 55, 30, 90, 75, 85, 75, 80, 100, 110, 70, 55, 30, 35, 45, 70, 80, 85, 95, 70, 60, 70, 75, 40, 100, 65, 60, 40, 100, 75, 110, 30, 45, 84.
Construct a frequency table as well as a cumulative frequency table.
Minimum observation = 30
Maximum observation = 120
Frequency Table :-
Class | Frequency |
30 – 40 | 4 |
40 – 50 | 6 |
50 – 60 | 3 |
60 – 70 | 5 |
70 – 80 | 9 |
80 – 90 | 6 |
90 – 100 | 2 |
100 – 110 | 3 |
110 – 120 | 2 |
Cumulative frequency table: -
Class | Frequency | Cumulative frequency |
30 – 40 | 4 | 4 |
40 – 50 | 6 | 10 |
50 – 60 | 3 | 13 |
60 – 70 | 5 | 18 |
70 – 80 | 9 | 27 |
80 – 90 | 6 | 33 |
90 – 100 | 2 | 35 |
100 – 110 | 3 | 38 |
110 – 120 | 2 | 40 |