Question

Leslie is a biologist. She is going to randomly select one animal from her lab to study. There are 5 salamanders, 3 crayfish, and 12 minnows in her lab. What is P (salamander)?

Answer 1

Answer:

The probability that Leslie randomly selects a salamander is $\frac{1}{4}$

Step-by-step explanation:

In general, when we are interested in finding the probability of a event, we just need to divide the number of possibilities the event we are interested in can happens by the number of all possible results.

In this case, we have $20$ differents animals to be chosen and we are interested in when one of the five salamanders is chosen. That is, P(salamander) = $\frac{5}{20}  = \frac{1}{4}$.

Answer 2

Answer:

The answer is 0.25.