Name ______Class______
Odds - HW
You are given the probability that an event will occur. Find the probability that the event will not occur (the complement).
1) P(A) = 58%
2)
3) P(A) = 0.23
4)
In Exercises 5–8, use the following information. A helium balloon lands in a neighborhood where 32% of the area is forest, 44% of the area is residential properties, and 20% of the area is a lake. Find the probability of the balloon landing in the given area.
5) on a residential property
6) in the forest or lake
7) in the forest, lake, or a residence
8) not in the forest, lake, or a residence
9) A teacher states that each student has a 90% chance of passing the next test. What are the odds of a student passing this test?
You have 3 pairs of black socks, 2 pairs of white socks, 4 pairs of khaki socks, and 1 pair of argyle socks in a laundry basket. Find the odds in favor of the event described when randomly pulling a sock from the laundry basket.
10) Draw a black sock.
11) Draw an argyle sock.
12) Draw a khaki or a white sock.
13) Draw a blue sock.
14) A field goal kicker made 21 out of 25 field goals. Based on this information, what are the odds in favor of him making the next field goal he kicks?
In Exercises 15–20, use the spinner to find the probability of the event described.
15) Spin a letter.
16) Spin an even number.
17) Spin a number greater than 11.
18) Spin a vowel.
19) Spin a gray sector.
20) Spin a gray sector or a letter.
In Exercises 21–23, use the target. Each small square has a side length of 10 inches. A bean bag is thrown at the target with an equal chance of hitting any spot on the target.
21) What is the area of each square on the target?
22) What is the total area of the target?
23) What is the probability that the bean bag hits the upper right square of the target?
24) What are the odds that the bean bag hits the center square of the target?