Table show mark of student to number of student :
| Marks | 0-20 | 20-30 | 30-40 | 40-50 | 50-60 | 60-70 | 70-10000 |
| number of students | 7 | 10 | 10 | 20 | 20 | 15 | 8 |
find probality(i) less than 20% marks (ii)60 or more marks
Match the items on the right to the items on the left.
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step 5
