Probability
India
Class X
Using Frequency tables and graphs to estimate probabilities
Interactive practice questions
The following table shows the frequency of the lengths jumped at a long jump competition. The class interval is a range of distances measured in centimeters.
| Class Interval | Frequency |
|---|---|
| $0-39$0−39 | $6$6 |
| $40-79$40−79 | $9$9 |
| $80-119$80−119 | $7$7 |
| $120-159$120−159 | $8$8 |
| $160-199$160−199 | $1$1 |
| $200-239$200−239 | $2$2 |
| Sum | $33$33 |
a
According to the table, what is the probability that someone jumped more than 119 cm?
b
What is the probability that someone's jump measured between 80 and 159cm (inclusive)?
Easy
1 min
At a golf course, the number of golf balls lost each day over several days were recorded, and rounded to the nearest 10. The graph shows the results.
Easy
1 min
The following table shows the number of people who scored a certain mark on a recent test. The test is marked out of 50.
Easy
2 min
The following table shows the weekly wage of a number of workers that were surveyed.
Medium
1 min
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