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In a school, 10% of the students have green eyes. Find the experimental probability that in a group of 4 students, at least one of them has green eyes. The problem has been simulated by generating random numbers. The digits 0-9 were used. Let the number "9" represent the 10% of students with green eyes. A sample of 20 random numbers is shown. 7918 7910 2546 1390 6075 2386 0793 7359 3048 1230 2816 6147 5978 5621 9732 9436 3806 5971 6173 1430 Experimental Probability = [?]% =

User Whittle
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1 Answer

3 votes

Answer: 45%

Explanation:

Given:

  • A sample of 20 random numbers.
  • The number "9" represents the 10% of students having green eyes.

Find:

  • The experimental probability that in a group of 4 students, at least one of them has green eyes.

The number of groups which contains 9 is 9 and the total number of groups are 20.

So,

P = 9 / 20 = 0.45 = 45%

Therefore, the experimental probability is 45%

User Paras Chauhan
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