Nia is 1 of 24 students in a class. Every month, Nia's teacher randomly selects 4 students from their class to act as class president, vice president, secretary, and treasurer. No one student can hold two positions.In a given month, what is the probability that Nia is chosen as president?Choose 1 answer:(A) 24P41(B) 24C41(C) 24P423P3(D) 24P4(24P1)⋅(24P3)
Q. Nia is 1 of 24 students in a class. Every month, Nia's teacher randomly selects 4 students from their class to act as class president, vice president, secretary, and treasurer. No one student can hold two positions.In a given month, what is the probability that Nia is chosen as president?Choose 1 answer:(A) 24P41(B) 24C41(C) 24P423P3(D) 24P4(24P1)⋅(24P3)
Understand the problem: Understand the problem.We need to calculate the probability that Nia is chosen as president out of 24 students, with 4 students being chosen for different positions.
Determine total combinations: Determine the total number of ways to choose 4 students out of 24 without regard to order.This is a combination problem because the order in which the students are chosen does not matter. We use the combination formula:(424)=4!×(24−4)!24!
Calculate combinations: Calculate the total number of combinations.24C4=4!×20!24!24C4=(4×3×2×1)(24×23×22×21)24C4=10626
Determine probability: Determine the probability that Nia is chosen as president.Since there is only one president, and Nia has an equal chance of being chosen as any other student, the probability is simply 1 out of the total number of combinations.P(Nia is president)=(424)1
Substitute into formula: Substitute the total number of combinations into the probability formula.P(Nia is president)=106261
Choose correct answer: Choose the correct answer from the given options.The correct answer is (B) because it represents the probability of choosing Nia as president out of the total number of combinations of 4 students from 24.