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Number 1 2 3 4 5 6 No of times 25 30 45 28 40...

Mathematics
WAEC 1993

Number 1 2 3 4 5 6
No of times 25 30 45 28 40 32

A die rolled 200 times. The outcome obtained are shown in the table above.

What is the probability of obtaining a number less than 3 ?

  • A. 0.125
  • B. 0.150
  • C. 0.275
  • D. 0.500
  • E. 0.725
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Correct Answer: Option C
Explanation

Prob(less than 3) = \(\frac{25 + 30}{200}\)

= \(\frac{11}{40}\)

= 0.275


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