Mathematics · Probability
On one page of a telephone directory, there were 100 telephone numbers. The frequency of their unit place digit is given below: Digit: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 Frequency: 10, 8, 12, 11, 9, 12, 8, 12, 8, 10 If a number is chosen at random, then the probability that the digit at its unit's place is a non-zero multiple of 2, is:
- 10.40
- 20.47
- 30.29
- 40.37✓
Correct answer
0.37
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