| Face | 1 | 2 | 3 | 4 | 5 | 6 |
| Frequency | 12 | 18 | y | 30 | 2y | 45 |
Given the table above as the results of tossing a fair die 150 times. Find the probability of obtaining a 5.
110
16
15
310
Correct answer is C
Probability of obtaining a 5 = frequency of 5total frequency
12+18+y+30+2y+45=150⟹105+3y=150
3y=45;y=15
Probability of 5 = 2×15150=15
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