Common Core: 7th Grade Math : Design and Use a Simulation to Generate Frequencies for Compound Events: CCSS.Math.Content.7.SP.C.8c

Study concepts, example questions & explanations for Common Core: 7th Grade Math

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Example Questions

Example Question #181 : Statistics & Probability

What is the probability of flipping a coin three times, with the coin landing on heads all three times, and rolling a number on a die other than 

Possible Answers:

Correct answer:

Explanation:

There are two sides to a coin: heads and tails. The probability of the coin landing on heads is 

To determine the probability of the coin landing on heads three times in a row, we take the probability of the coin landing on heads and multiply it three times. 

Based on the question, we want to combine the probability of flipping a coin three times, with the coin landing on heads all three times, with the probability of rolling any number on a die except . There are  sides to a die, and five sides that aren't the number ; thus, the probability of rolling any number on a die except  is 

We want the probability of all of these events occurring, so we need to multiply:

 

Example Question #182 : Statistics & Probability

A student flips a coin four times and rolls a six-sided die. What is the probability that the coin will land on heads all four times and the die will show a ?

Possible Answers:

Correct answer:

Explanation:

There are two sides to a coin: heads and tails. The probability of the coin landing on heads is 

To determine the probability of the coin landing on heads four times in a row, we take the probability of the coin landing on heads and multiply it four times. 

Based on the question, we want to combine the probability of flipping a coin four times, with the coin landing on heads all four times, with the probability of rolling a  on a die. There are  sides to a die, and only one of those sides has the number ; thus, the probability of rolling a  on a die is 

We want the probability of all of these events occurring, so we need to multiply:

 

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