Lesson 2-3 Example 3

1
Lesson 2-3 Example 3
2-3
Find the probability. Write the problem as a
fraction in simplest form. In a bag there are 3
green chips, 5 yellow chips, 9 blue chips, 2 red
chips. Find the probability of reaching into the
bag without looking and not getting a green chip.
Step 1 Count the total number of chips.
19 This is the denominator in the fraction.
2
Lesson 2-3 Example 3
2-3
Find the probability. Write the problem as a
fraction in simplest form. In a bag there are 3
green chips, 5 yellow chips, 9 blue chips, 2 red
chips. Find the probability of reaching into the
bag without looking and not getting a green chip.
Step 2 Count the number of chips in the bag that
are green.
3 This is the numerator in the fraction.
3
Lesson 2-3 Example 3
2-3
Find the probability. Write the problem as a
fraction in simplest form. In a bag there are 3
green chips, 5 yellow chips, 9 blue chips, 2 red
chips. Find the probability of reaching into the
bag without looking and not getting a green chip.
Step 3 Write a ratio in simplest form for the
P(green).
4
Lesson 2-3 Example 3
2-3
Find the probability. Write the problem as a
fraction in simplest form. In a bag there are 3
green chips, 5 yellow chips, 9 blue chips, 2 red
chips. Find the probability of reaching into the
bag without looking and not getting a green chip.
Step 4 Find the P(not green).