A box contains 5 red balls, 3 blue balls, and 2 green balls. If one ball is draw

A box contains 5 red balls, 3 blue balls, and 2 green balls. If one ball is drawn at random, what is the probability that it is not blue? (2023)

A box contains 5 red balls, 3 blue balls, and 2 green balls. If one ball is drawn at random, what is the probability that it is not blue? (2023)

Step 1: Count the total number of balls in the box. There are 5 red balls, 3 blue balls, and 2 green balls.
Step 2: Add the number of red, blue, and green balls together to find the total: 5 + 3 + 2 = 10.
Step 3: Identify the number of non-blue balls. Non-blue balls are red and green: 5 red + 2 green = 7.
Step 4: Calculate the probability of drawing a non-blue ball. Use the formula: Probability = (Number of non-blue balls) / (Total number of balls).
Step 5: Substitute the numbers into the formula: Probability = 7 / 10.
Step 6: Convert the fraction to a decimal if needed: 7 / 10 = 0.7.

Probability – The likelihood of an event occurring, calculated as the ratio of favorable outcomes to total outcomes.
Counting Outcomes – Understanding how to count the total number of outcomes and favorable outcomes in a probability scenario.