7th Grade Math : Probability

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

varsity tutors app store varsity tutors android store

Example Questions

Example Question #1 : Probability

Kelly spun a spinner, which is pictured below,  times. She recorded her results in the table provided. What is the theoretical probability of the spinner landing on the orange section? 


1Screen shot 2016 03 03 at 9.49.24 am

Possible Answers:

Correct answer:

Explanation:

The theoretical probability is what should happen. In this case, we have  spaces and  of those spaces is orange; thus, the theoretical probability of the spinner landing on orange should always be  or 

Example Question #2 : Probability

Charlie is going to roll a die and flip a coin. What is the probability that he will roll a  and the coin will land with heads facing up? 

Possible Answers:

Correct answer:

Explanation:

To help us solve this problem, we can make a tree diagram to show all of the possible outcomes of rolling a die and flipping a coin:

1

As shown from the diagram, we have  possible outcomes, but there is only one way to roll a  and for the coin to land on heads; thus, the probability is 

Learning Tools by Varsity Tutors

Incompatible Browser

Please upgrade or download one of the following browsers to use Instant Tutoring: