Experimental Probability

Front

What is experimental probability?

Back

Experimental probability is the likelihood of an event occurring based on the results of an experiment or trial, calculated as the number of times the event occurs divided by the total number of trials.

Front

How do you calculate the probability of an event?

Back

Probability of an event = (Number of favorable outcomes) / (Total number of outcomes).

Tags

CCSS.7.SP.C.7A

Front

If Rylee caught 4 trout, 10 catfish, and 13 bluegill, what is the total number of fish caught?

Back

Total fish caught = 4 + 10 + 13 = 27.

Tags

CCSS.2.NBT.B.6

Front

What is the probability that the next fish Rylee catches will be a catfish?

Back

Probability = (Number of catfish) / (Total number of fish) = 10 / 27 ≈ 0.37 or 37%.

Tags

CCSS.7.SP.C.7B

Front

In a standard deck of 52 playing cards, how many jacks are there?

Back

There are 4 jacks in a standard deck of 52 playing cards.

Front

What is the probability of drawing a jack from a standard deck of cards?

Back

Probability = (Number of jacks) / (Total number of cards) = 4 / 52 = 1 / 13.

Tags

CCSS.7.SP.C.7B

Front

What does a probability of 0.99 indicate about an event?

Back

A probability of 0.99 indicates that the event is likely to occur.

Tags

CCSS.7.SP.C.5

Front

Kyleigh saw 10 blue, 8 red, and 42 white cars. What is the total number of cars?

Back

Total cars = 10 + 8 + 42 = 60.

Tags

CCSS.3.OA.D.8

Front

What is the experimental probability that the next car will not be white?

Back

Probability = (Number of non-white cars) / (Total number of cars) = (10 + 8) / 60 = 18 / 60 = 0.3.

Tags

CCSS.7.SP.C.6

Front

If the experimental probability of an SUV passing by is 0.4, how many SUVs can Ariel expect if 500 cars pass by?

Back

Expected SUVs = 0.4 * 500 = 200.

Tags

CCSS.7.SP.C.6