Question

a trait that occurs in 450 individuals out of a total of 1,800 individuals occurs with a probability of
0.04.
0.75.
0.25.
0.50.

Explanation:

Step1: Recall Probability Formula

Probability of an event is the number of favorable outcomes divided by the total number of outcomes. So, \( P = \frac{\text{Number of individuals with trait}}{\text{Total number of individuals}} \).

Step2: Substitute Values

Here, number of individuals with trait is 450, total individuals is 1800. So, \( P = \frac{450}{1800} \).

Step3: Simplify the Fraction

Divide numerator and denominator by 450: \( \frac{450\div450}{1800\div450} = \frac{1}{4} = 0.25 \).

Answer:

0.25 (corresponding to the option "0.25")