50.7k views
1 vote
Ms. Rodas has a class with 26 students. 14 of the students are boys. The department chair asks her to send 3 students to help take inventory of the math textbooks. What is the probability that she sends 2 boys and 1 girl? *

14/25
77/600
539/3900
77/676

2 Answers

3 votes

Answer: 7/50

Explanation:

Ms. Rodas has a class with 26 students. 14 of the students are boys. The department-example-1
User Rosebud
by
6.7k points
3 votes

Answer:

  • 7/50, none of the answer choices

Explanation:

  • Total number = 26
  • Number of boys = 14
  • Number of girls = 12

There are three ways of choosing 2 boys and a girl:

  • P(bbg) = 14/26*13/25*12/24 = 7/50
  • P(bgb) = 14/26*12/25*13/24 = 7/50
  • P(gbb) = 12/26*14/25*13/24 = 7/50

As we see the answer is 7/50 and all the answer choices are different from this

User Seanpj
by
7.3k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.