Probability

What is the purpose of using probability

• To guess how much someone will spend

• Just for fun

• To predict the likeliness of an event happening

• To accurately calculate an average

Tags

CCSS.7.SP.C.5

What can a probability look like? Select 3 options

• Fractions

• Plots on a graph

• formulas

• Percentages

• Decimals

Tags

CCSS.7.SP.C.5

Label this scale with the following:

0

0.25

0.5

0.75

1

Tags

CCSS.HSN.Q.A.1

Where would 40% be on this scale?

Kelly has a bag of sweets. In words what is the probability she will pick a red sweet?

• Impossible

• Unlikely

• Even

• Likely

• Certain

Tags

CCSS.7.SP.C.5

A website is giving away freebie bags in yellow, blue and purple. Mandy got a freebie bag from the website. She created the following scale to show her chance of getting a purple bag. What chance does Mandy have shown as a percentage?

• 25%

• 50%

• 90%

• 40%

Tags

CCSS.7.SP.C.5

James plays the arrow spinner game. What is the probability he will land on number 3? Write your answer as a fraction.

(use / between your numbers)

Tags

CCSS.7.SP.C.7A

A website is doing a spinner giveaway. Jess spins the online spinner. What is the probability she will land on a white prize? Write your answer as a fraction. Can you simplify it?

The probability Carol will sell a cake to a customer at a visit is 2/5 chance. She has 2 visits tomorrow.

What is the chance she will sell a cake on both visits tomorrow? Simplify if you can

• 4/25

• 5/30

• 1/3

• 4/10

Write your answer as a percentage

Tags

CCSS.7.SP.C.7B