Question

Jan conducted a probability experiment in which she randomly selected a marker out of a bag that contained 10 markers. She repeated the procedure a total of 50 times and replaced the marker after each time. The results of Jan's experiment are listed below. What is the probability of selecting a red marker in her experiment?

Red markers selected: 18 times
Blue markers selected: 12 times
Green markers selected: 20 times

A) 0.36
B) 0.48
C) 0.30
D) 0.72

Answer 1

The probability of selecting a red marker from Jan's experiment is calculated by dividing the number of times a red marker was selected (18) by the total number of selections made (50), resulting in a probability of 0.36.

Step-by-step explanation:

The question asks about the probability of selecting a red marker from a bag in Jan's experiment. To calculate this probability, we use the classic probability formula: probability = number of desired outcomes / total number of outcomes. In this case, the number of desired outcomes is the number of times a red marker was selected, which is 18. The total number of outcomes is the total number of selections made, which is 50.

Therefore, the probability of selecting a red marker is:
Probability = 18 (red markers selected) / 50 (total selections) = 0.36.

This makes the correct answer A) 0.36.