Olive is allowed to bring one friend on a trip with her. She does not want to play favorites. What is NOT a random method of choosing a friend?

Question

asked Aug 24, 2020 123k views

2 Answers

Haouarin · Answer 1 · 2020-08-29T23:57:36+0000

Answer:

Let number of friends Olive has = S

She wants to select a friend for a trip.

1. Probability of selecting a friend out of S friends

$=\frac{\text{Total favorable Outcome}}{\text{Total possible outcome}}\\\\=(1)/(S)$

Ok, suppose out of S friends P are male and Q are female.

S=P +Q

2. Probability of selecting 1 male friend out of S friends which includes P male and Q female

$\frac{{}_(1)^(P)\textrm{C}}{S}$

3. Probability of selecting 1 Female friend out of S friends which includes P male and Q female

$\frac{{}_(1)^(Q)\textrm{C}}{S}$

These three are random methods.Other methods of finding probability of choosing a friend can be non Random.