Calculate probabilities with two-way tables.
Two Way Table: A table used to display data in two different categories.
Calculate probabilities with two-way tables.
Two Way Table: A table used to display data in two different categories.
Finish filling in the table below.
Finish filling in the table below.
There are 16 juniors and 24 seniors on a debate team. Of these, 7 juniors and 19 seniors qualify for a state debate competition. Organize this information in a two-way table. (Hint: Use "Qualify" and "Did not Qualify" as one of your categories.)
How many total surfers were questioned?
How many surfers are advanced?
If a surfer was randomly selected, what are the chances that the surfer has a regular surfing style and is male? First write your answer as a fraction in the show your work section. Then state your final answer as a percent rounded to the nearest tenth.
A female surfer is randomly selected. What are the chances they are advanced? First write your answer as a fraction in the show your work section. Then state your final answer a percent rounded to the nearest tenth.
How many total people were questioned?
A person is selected at random. What are the chances it is someone who has both a hunting license and fishing license? First write your answer as a fraction in the show your work section. Then state your final answer a percent rounded to the nearest tenth.
Someone who does NOT have a fishing license is selected at random. What are the chances that they have a hunting license? First write your answer as a fraction in the show your work section. Then state your final answer a percent rounded to the nearest tenth.
Someone who has a hunting license is selected at random. What are the chances that they also have a fishing license? First write your answer as a fraction in the show your work section. Then state your final answer a percent rounded to the nearest tenth.
A research group surveys parents and coaches of high school students about whether competitive sports are important in school.
Describe the error.
Find the probability that a person chosen at random feels sports are important.
1000/1501=66.6%
What does 120 represent?
What does 165 represent?
EXTENSION:
The table shows how many adults and students attended a concert at the local park on Friday night, and whether or not each bought a program for the concert at the concession stand.
EXTENSION: Based on this data, use a percentage to express how likely it is that a student at a football game next Friday will buy a program at the concession stand. Round your answer to the nearest whole percent.
EXTENSION: Based on this data, use a percentage to express how likely it is an adult or student at a football game next Friday will buy a program at the concession stand. Round your answer to the nearest whole percent.
EXTENSION: If 40 students did not buy a program at the concession stand, then how many adults and students altogether do the data represent? Round to the nearest whole number.
Rate your understanding on using two-way tables to calculate probabilities.
A "regular" surfer is randomly selected. What are the chances they are female? First write your answer as a fraction in the show your work section. Then state your final answer a percent rounded to the nearest tenth.
