Probability Review 9

Front

What is Theoretical Probability?

Back

Theoretical Probability is the likelihood of an event happening based on all possible outcomes, calculated as the number of favorable outcomes divided by the total number of outcomes.

Front

How do you calculate the total number of Skittles in a bag?

Back

Add the number of Skittles of each color together. For example, Red (2) + Orange (3) + Purple (4) + Green (5) + Yellow (6) = 20 Skittles.

Front

What is the formula for calculating the probability of picking a specific color Skittle?

Back

Probability = (Number of Skittles of that color) / (Total number of Skittles).

Front

If there are 3 Orange Skittles and 20 total Skittles, what is the probability of picking an Orange Skittle?

Back

3/20.

Front

What does 'then' mean in the context of probability?

Back

'Then' indicates that two events are happening in sequence, and the probability of both events occurring is calculated by multiplying their individual probabilities.

Front

What is the probability of picking an Orange Skittle and then a Purple Skittle?

Back

(3/20) * (4/19) = 12/380 = 3/95.

Front

What is the probability of picking a Yellow Skittle?

Back

6/20 = 3/10.

Front

What is the probability of picking an Orange Skittle and then a Green Skittle?

Back

(3/20) * (5/19) = 15/380 = 3/76.

Front

What is the probability of picking a Red Skittle?

Back

2/20 = 1/10.

Front

What is the probability of picking a Yellow Skittle twice in a row?

Back

(6/20) * (5/19) = 30/380 = 3/38.