Probability Quiz: Gender Selection in Hiring
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Questions and Answers

What is the formula to calculate the probability of selecting 3 females and 2 males out of 11 finalists?

The probability can be calculated using the formula: P = (C(6,3) * C(5,2)) / C(11,5), where C(n,k) is the combination formula.

Calculate the probability of selecting 4 females and 1 male from the group of applicants.

The probability is P = (C(6,4) * C(5,1)) / C(11,5), which equals 0.227.

What is the probability of selecting all 5 females from the applicant pool?

The probability is P = C(6,5) / C(11,5), which equals 0.086.

Explain how to determine the probability of selecting at least 4 females.

<p>To find this probability, calculate P(4 females) + P(5 females), where both probabilities are determined using combination formulas.</p> Signup and view all the answers

What does the term 'at least 4 females' imply in probability terms?

<p>It implies the inclusion of cases where there are either 4 or 5 females selected from the applicants.</p> Signup and view all the answers

Study Notes

Probability Calculations for Selecting Applicants

  • The total number of applicants consists of 6 females and 5 males, making a total of 11 finalists.
  • Positions to be filled: 5
  • Selection process is random.

Probability of Selecting 3 Females and 2 Males

  • To find the probability of selecting 3 females and 2 males, use the combination formula.
  • Calculate combinations:
    • Choose 3 females from 6: C(6,3)
    • Choose 2 males from 5: C(5,2)
  • Combine to find total favorable outcomes: C(6,3) * C(5,2).
  • Total ways to choose any 5 from 11: C(11,5).
  • Probability formula: P(3 females, 2 males) = (C(6,3) * C(5,2)) / C(11,5).

Probability of Selecting 4 Females and 1 Male

  • Use combinations to determine probability:
    • Choose 4 females from 6: C(6,4).
    • Choose 1 male from 5: C(5,1).
  • Total favorable outcomes: C(6,4) * C(5,1).
  • Probability formula: P(4 females, 1 male) = (C(6,4) * C(5,1)) / C(11,5).

Probability of Selecting 5 Females

  • Check feasibility: Only 6 females available, can select 5.
  • Calculate combinations:
    • Choose 5 females from 6: C(6,5).
  • Total favorable outcomes: C(6,5) is the only combination.
  • Probability formula: P(5 females) = (C(6,5)) / C(11,5).

Probability of Selecting At Least 4 Females

  • This includes scenarios of selecting 4 females and 1 male, or 5 females.
  • Use previously calculated probabilities:
    • Probability of selecting 4 females: P(4 females, 1 male)
    • Probability of selecting 5 females: P(5 females)
  • Combine probabilities: P(at least 4 females) = P(4 females, 1 male) + P(5 females).

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Description

This quiz explores the probability of selecting female and male applicants for 5 positions from a pool of 11 finalists. The questions focus on calculating probabilities for specific gender ratios, enhancing your understanding of combinatorics in probability. Test your skills with scenarios involving 3 females and 2 males, 4 females and 1 male, and more.

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