The table shows data from a science fair experiment that studied the number of eggs that hatched at three different temperatures. 

1. What percentage of the eggs hatched?
2. What percentage of the eggs that were at the cool temperature hatched?
3. What percentage of the eggs were not at room temperature?
4. What percentage of the eggs were at the warm temperature and did not hatch?

The table shows information from a survey about the resting heart rate in beats per minute (bpm), for 50 people living at altitudes above and below 10,000 feet.

1. Create a two-way table that shows the relative frequency for each of the values in the table relative to all 50 people in the survey.
2. A person who has an elevated heart rate or stays at high altitude for a long time has an increased risk of headaches. What is the probability that a person surveyed, selected at random, has a heart rate above 80 bpm or lives above 10,000 ft?
3. What is the probability that a person surveyed, selected at random, has a heart rate above 80 bpm and lives above 10,000 ft?

A student flips a fair coin and then spins this spinner. How would you find the sample space?

Select all of the words for which the probability of selecting the letter A at random is .

On an assignment, there are two multiple choice questions with four answer choices each. You have no idea what the correct answer is to either one so you guess.

1. What is the probability that you get both of them right by guessing? Explain your answer.
2. What is the probability that you get exactly one of them right by guessing? Explain your answer.

Here are 2 circles. The smaller circle has radius , circumference , and diameter . The larger circle has radius , circumference , and diameter . The larger circle is a dilation of the smaller circle by a factor of .

Using the circles, match the pairs of ratios with their values.