Simple Probability

Front

What is Simple Probability?

Back

Simple Probability is the likelihood of a single event occurring, calculated as the number of favorable outcomes divided by the total number of possible outcomes.

Front

How do you calculate the probability of an event?

Back

Probability = (Number of favorable outcomes) / (Total number of possible outcomes)

Front

What is the probability of spinning an even number on a spinner with numbers 1 to 6?

Back

50% (3 even numbers: 2, 4, 6 out of 6 total numbers).

Front

What is the probability of spinning green on a spinner with 4 equal sections: Red, Blue, Green, Yellow?

Back

1/4 (1 green section out of 4 total sections).

Front

What is the probability of drawing a 10 from a standard deck of cards?

Back

Probability = 4/52 = 1/13 (4 tens in a 52 card deck).

Front

What is the probability of drawing a face card (J, Q, K) from a standard deck of cards?

Back

Probability = 12/52 = 3/13 (12 face cards in a 52 card deck).

Front

What is the probability of drawing a 10, then a face card, and then another 10 without replacement?

Back

(4/52) X (12/51) X (3/50) = 0.0037.

Front

What is the probability of getting Heads and Red when tossing a coin and spinning a spinner with 4 colors?

Back

1/6 (1/2 for Heads and 1/4 for Red: 1/2 * 1/4 = 1/8).

Front

What is the probability of picking a brown sock, then a black sock from a drawer with 6 white, 4 black, and 2 brown socks?

Back

1/18 (Probability of brown = 2/12, Probability of black = 4/12: (2/12) * (4/12) = 1/18).

Front

What is the total number of outcomes when rolling a die?

Back

6 (The die has 6 faces: 1, 2, 3, 4, 5, 6).