Exploring Simple Theoretical Probability Concepts

Mr. Kolu introduces simple probability, explaining it as the chance an event will occur. He uses examples like jelly beans, cards, a spinner, and a coin to illustrate probability calculations. The video covers the probability scale from 0% to 100% and emphasizes that probability is always a fraction. It concludes with a race example to highlight the difference between random chance and skill-based events.

What is the basic definition of probability according to the video?

• The number of unfavorable outcomes

• The chance of an event occurring

• The number of times an event occurs

• The total number of possible outcomes

Tags

CCSS.7.SP.C.5

How is simple probability calculated?

• Total outcomes over favorable outcomes

• Favorable outcomes over total outcomes

• Total outcomes minus favorable outcomes

• Favorable outcomes minus total outcomes

Tags

CCSS.7.SP.C.7A

What is the probability of drawing a green jellybean from a sack of 8, with 2 being green?

• 1/2

• 1/4

• 1/8

• 2/8

Tags

CCSS.7.SP.C.7B

What does a 50% probability indicate?

• The event will not happen

• The event may or may not happen

• The event is unlikely to happen

• The event will definitely happen

Tags

CCSS.7.SP.C.5

What is the probability of drawing a blue card from a set of 7 cards, 3 of which are blue?

• 33.3%

• 50%

• 57.1%

• 42.8%

Tags

CCSS.7.SP.C.7B

Which card is more likely to be drawn based on the probability, red or blue?

• Red

• Both are equally likely

• Cannot be determined

• Blue

Tags

CCSS.7.SP.C.5

What is the probability of a coin landing on tails?

• 100%

• 25%

• 50%

• 75%

Tags

CCSS.7.SP.C.5

Why might the actual outcome of flipping a coin 10 times not match the expected probability?

• The coin is biased

• Probability is always incorrect

• Coin flips are unpredictable

• Probability provides an expectation, not a certainty

What factor does not affect the probability of Mr. Red winning the race?

• Mr. Purple's ankle condition

• Mr. Blue Warrior's health

• The skill of the runners

• The total number of runners

Tags

CCSS.HSS.CP.A.5

Why is probability not effective in predicting the outcome of a race?

• Because the probability is always 50/50

• Because races depend on skill, not chance

• Because races are random events

• Because the outcome is predetermined

Tags

CCSS.7.SP.C.5