Given that the probability of selecting a red pepper, $P(\text{red pepper}) = \frac{3}{5}$, we need to find the probability of selecting a pepper that is not red, which in this case is a yellow pepper, $P(\text{yellow pepper})$, to complete the probability model.

1. Problem Description

Given that the probability of selecting a red pepper, $P(\text{red pepper}) = \frac{3}{5}$, we need to find the probability of selecting a pepper that is not red, which in this case is a yellow pepper, $P(\text{yellow pepper})$, to complete the probability model.

2. Solution Steps

The total probability of all possible outcomes in a probability model must equal

1. In this case, we have two outcomes: selecting a red pepper or selecting a yellow pepper.

Therefore, $P(\text{red pepper}) + P(\text{yellow pepper}) = 1$.

We are given that $P(\text{red pepper}) = \frac{3}{5}$.

Substituting this value into the equation, we get:

$\frac{3}{5} + P(\text{yellow pepper}) = 1$

To find $P(\text{yellow pepper})$, we subtract $\frac{3}{5}$ from both sides of the equation:

$P(\text{yellow pepper}) = 1 - \frac{3}{5}$

$P(\text{yellow pepper}) = \frac{5}{5} - \frac{3}{5}$

$P(\text{yellow pepper}) = \frac{2}{5}$

3. Final Answer

$P(\text{yellow pepper}) = \frac{2}{5}$