Introduction to Probability and Statistics

Open Ended

How are you during the long weekend?

What is probability?

Probability is about how likely some events are to happen.

Study about the chances or possibility of

Example 1

Example 2

​

There is a bag with blue and red marbles. You are going to pick a ball randomly from the bag.

​

You are "more likely" to choose a blue ball from the bag.​ (there are 12 blue balls out of 16)

​

You are "unlikely" to choose a red ball from the bag.​ (there are 4 red balls out of 16)

​

​

Multiple Choice

Can the probability of an event be zero?

• Yes

• No

Open Ended

Give an example of an event with zero probability.

Multiple Choice

Describe the probability of the event:

"There are 30 days in May"

• Impossible

• Likely/Unlikely

• Certain

Multiple Choice

Describe the probability of the event:

"There are 7 days in a week"

• Impossible

• Likely/Unlikely

• Certain

Multiple Choice

Describe the probability of the event:

"It will be sunny everyday next week"

• Impossible

• Likely/Unlikely

• Certain

Multiple Choice

Describe the probability of the event:

"A dog will chase a cat"

• Impossible

• Likely/Unlikely

• Certain

Multiple Choice

Describe the probability of the event:

"A triangle has 4 sides"

• Impossible

• Likely/Unlikely

• Certain

​Read the following information carefully

Example 2

Multiple Choice

A letter is chosen randomly from the word ‘TERRY’.

Find the probability of choosing the letter "E".

• 1/5

• 1/4

• 3/5

• 1

Multiple Choice

A digit is chosen randomly from the date ‘01-10-2022’.

What is the probability that it is a '0'?

• 3/8

• 3/7

• 2/7

• 1/4

Multiple Choice

A fair dice is thrown. Find the probability of getting a ‘5’

• 5/6

• 1/6

• 2/6

• 1

Multiple Choice

A fair dice is thrown. Find the probability of getting an odd number.

• 1/3

• 1/2

• 1/6

• 0

Multiple Choice

A box contains 6 apples, 4 oranges and 5 mangoes. If a piece of fruit is drawn at random from the box, find the probability that the fruit drawn is an apple.

• 2/5

• 1/3

• 6/15

• 2/15

Multiple Choice

A box contains 6 apples, 4 oranges and 5 mangoes. If a piece of fruit is drawn at random from the box, find the probability that the fruit drawn is a peach.

• 1/5

• 0

• 4/15

• 1

Multiple Choice

Probability can be written as ...

• a fraction

• a decimal

• a percentage

• all of the above

Probability can be expressed as a fraction, decimal and percentage!

Poll

How do you feel about probability?

• Good

• Interesting

• Difficult

• Easy

• Boring

Probability

​Quiz: Test yourself

Multiple Choice

What color are you MOST likely to land on?

• pink

• green

• yellow

• blue

Multiple Choice

Jazlyn has 4 quarters, 10 dimes, and 3 nickels in her wallet.

What is the likelihood of her choosing a penny?

• certain

• likely

• unlikely

• impossible

Multiple Choice

What is the likelihood of getting yellow?

• 1 out of 12

• 1 out of 8

• 3 out of 12

• 5 out of 7

Multiple Choice

How likely is it that summer will come?

• Certain

• Likely

• Unlikely

• Impossible

• Equally likely

Multiple Choice

How likely is it that I will see a dinosaur tomorrow?

• Certain

• Likely/Unlikely

• Impossible

Multiple Choice

What fraction of the rectangle is blue?

• 1/6

• 2/6

• 6/2

• 2/3

Multiple Choice

What fraction is red?

• 1/4

• 2/4

• 3/4

• 4/4

Multiple Choice

What is the probability of flipping a coin and getting heads?

• 1/2

• 1/3

• 1/4

Multiple Choice

What is the probability of the spinner landing on an odd number?

• 4/8

• 4/4

• 1/4

• 1/3

Multiple Choice

What result is least likely?

• Blue

• Red

• Yellow

• Purple

Multiple Choice

What color is least likely to be picked?

• Green

• Black

• Light Blue

• Red

Multiple Choice

Which color is impossible to pick?

• Blue

• Yellow

• Red

• Purple

Multiple Choice

If you were picking from a bag, which two tiles are equally likely?

• B and D

• A and D

• H and D

• M and D

Multiple Choice

Where will the spinner most likely land?

• Blue

• Red

• Green

• Pink

Multiple Choice

Which color marble is least likely to be pulled from the jar?

• Green 

• Red

• Blue

Probability Summary

By Liliana Bazan

Probability of Simple Events​

​

​

​Part (want).

Total (have)

​