Resources  Testimonials
Plans
Resources  Testimonials
Plans

Probability is the chance of occurrence of an event. It tells us about the likelihood of the occurrence or non-occurrence of an event. Through 7th grade probability, students can understand, there are situations that are certain to happen, some that are impossible, and some that may or may not happen. The situation that may or may not happen has a chance of happening. Those which have no chance of happening have a probability of 0 and those that are bound to happen to have a probability of 1.

## Important points of probability

• Formula of Probability =  outcomes/total number of outcomes.
• Whenever we're unsure about the outcome of an event, we can talk about the probabilities of certain outcomes - how likely they are.
• The probabilities in a probability model must sum to 1.
• The value is expressed from zero to one.
• Probability has been introduced in Maths to predict how likely events are to happen.
• The meaning of probability is the extent to which something is likely to happen.
• This basic probability theory, which is also used in probability distribution, where you will learn the possibility of outcomes for a random experiment.

1.   There are 6 marbles in a box with numbers from 1 to 6 marked on each of them. What is the probability of drawing a marble with the number 2?

Ø  Total number of events = 6

Ø  A favourable event is to get the marble with the number 2 marked on it.

Ø  Number of favourable events = 1

Ø  Probability =  outcomes/total number of outcomes

Ø  Probability = 1/6

2.   There are 6 pillows in a bed, 3 are red, 2 are yellow and 1 is blue. What is the probability of picking a yellow pillow?

Ø  The probability is equal to the number of yellow pillows in the bed divided by the total number of pillows

Ø  Total number of outcomes= 6

Ø  Number of favourable events = 2

Ø  Probability =  outcomes/total number of outcomes

Ø  Probability= 2/6 = 1/3.

Teachers are looking for lessons, activities, worksheets, quiz, mock test papers that are suitable for 7th grade math. Here's your compilation of lessons suitable for 7th grade to share with your students.

## Sum Up

7th grade math probability problems help students to understand about the possibilities happening of any event.

### What teachers are saying about BytelearnWhat teachers are saying  Stephen Abate
19-year math teacher
Carmel, CA
Any math teacher that I know would love to have access to ByteLearn.  Jennifer Maschino
4-year math teacher
Summerville, SC
“I love that ByteLearn helps reduce a teacher’s workload and engages students through an interactive digital interface.”  Rodolpho Loureiro
Dean, math program manager, principal
Miami, FL
“ByteLearn provides instant, customized feedback for students—a game-changer to the educational landscape.”