Probability and Likelyhood

Presentation

•

Mathematics

•

6th - 8th Grade

•

Medium

•

CCSS

7.SP.C.5, 7.SP.C.6, 7.SP.C.7B

Standards-aligned

Aimee Norman

Used 76+ times

FREE Resource

9 Slides • 24 Questions

Probability

What are the chances?

Fill in the Blanks

Write as a decimal

Type answer...

and as a percent

Type answer...

How likely an event will occur

Define Probablity

A number between 0 (0%) and 1 (100%)

Written as P_(event) or P_(e)

Where the word event can be replaced with what you want to occur.
Example: P_(heads)

Drag and Drop

The probability scale falls between

at lowest end and

at highest end

OR 0% and

percent

Drag these tiles and drop them in the correct blank above

100

1/2

5000

1000

8.2

A way to describe probability using words

Likelihood

Labeling

Place each word on the probability scale

Drag labels to their correct position on the image

As likely as not

Certain

Impossible

Unlikely

Likely

Impossible and Certain

Will or has happened

Probability = 1 (100%)

Certain

Can NEVER happen

Probability = 0 (0%)

Impossible

Roll a 7 on a 6 sided die

Roll a number less than 10 on a 6 sided die

Multiple Choice

What is the likelihood of rolling the sum of 15 with a pair of dice?

impossible

unlikely

equally likely

likely

Match

Match each event with its likelihood

impossible

Unlikely

As likely as not

Likely

Certain

A pig flying.

Picking a face card from a deck of cards.

Getting heads on a coin toss.

A sum greater than 4 when rolling 2 dice.

Rolling a number less than 7 on a die.

When all outcomes are as equally likely

Theoretical Probability

ALWAYS SIMPLIFY THE FRACTION !!!

ALL possible outcomes

# of ways to get what you want

Pulling a green marble?

What is the probability of...

Multiple Choice

What is the probability of pulling a blue marble?

$\frac{4}{10}$

$\frac{1}{2}$

$\frac{2}{3}$

$\frac{2}{5}$

Multiple Choice

What is the likelihood of pulling a blue marble?

certain

impossible

as likely as not

likely

unlikely

Multiple Choice

What is the probability of spinning orange?

1/4

1/2

3/4

Multiple Choice

What is the probability of the spinner landing on red?

5/12

7/12

5/5

5/10 or 1/2

Multiple Choice

In a deck of 52 cards, what is the likelihood of selecting 1 of the 4 aces?

impossible

unlikely

as likely as unlikely

likely

Multiple Choice

A die is rolled once. What is the probability of rolling a number less than 3?

1/3

5/6

2/3

1/2

1/6

Multiple Choice

Nerissa has 5 pink bows, 1 blue bow, and 4 purple bows in a box. She will randomly choose 1 bow from the box.

What is the probability Nerissa will choose a purple bow?

1/2

2/5

1/10

3/5

Reorder

Lauren spins the spinner with 8-equal sized sections one time. Drag the tiles to arrange the events in order from least likely to most likely.

spinning a 4 or 5

spinning a 6

spinning an even number

spinning a number greater than 5

Multiple Choice

A bag contains 30 pieces of candy. There are 15 grape, 7 cherry, 3 lemon, 5 strawberry. What is the probability of drawing a lemon?

1/10

3/10

30%

Multiple Choice

To play a game Benny must spin the spinner shown below.

What is the probability that the spinner will land on a number less than 7?

7/8

3/4

8/7

Experimental Probability

Theoretical vs Experimental Probability

Multiple Choice

Experimental Probability is:

What Will happen

What actually happens

What should happen

What I think Happens

Experimental Probability

Multiple Choice

What happens to the experimental probability as the number of trials increases?

As more trials are completed, the experimental probability generally draws closer to the theoretical probability

As more trials are completed, the theoretical probability generally draws closer to the experimental probability

Multiple Choice

Dylan made 15 out of 35 free throws.

What's his experimental probability as a simplified fraction?

3/7

15/35

1/2

5/7

Multiple Choice

Tammy rolled a die five times.

Here is what she got on her five rolls: 1, 3, 3, 4, & 4

Find the experimental probability:

P(3) =

3/5

1/6

2/5

1/3

Multiple Choice

A coin is tossed 18 times. It lands on heads 12 times. What is the experimental probability of the coin landing on tails? simplify the fraction!

Multiple Choice

Kate spun the spinner 75 times and landed on "3" thirty times.

What is the experimental probability as a percentage?

20%

30%

40%

50%

Multiple Choice

The table shows the results of 50 rolls of a number cube. According to the data in the table, what was the experimental probability of rolling a 1? (Simplify if needed)

Multiple Choice

The bar graph shows the results of spinning the spinner 200 times. What is the experimental probability of landing on a 3?

Multiple Choice

What is the experimental probability of rolling a 6?

$\frac{7}{15}$

$\frac{1}{2}$

$\frac{8}{15}$

$\frac{13}{30}$

Probability

What are the chances?

Show answer

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