Prob and Stats Final Review

Front

What is the probability of drawing Sandals given that Pants are worn?

Back

P(Sandals|Pants) = \frac{4}{14}

Front

What is a random variable that can take a number of distinct outcomes?

Back

Discrete Random Variable

Front

In a deck of 52 playing cards, what is the probability of drawing an Ace or a King?

Back

P(Ace or King) = \frac{2}{13}

Front

According to the 68-95-99.7 rule, what percentage of data falls within two standard deviations of the mean in a normal distribution?

Back

95%

Front

What is the probability of picking a red pen, replacing it, and then picking a green pen from a box containing 3 red pens, 2 green pens, and 1 blue pen?

Back

P(Red then Green) = \frac{1}{6}

Front

Define a Simple Random Variable.

Back

A variable that can take on any value within a given range.

Front

What is the difference between a Discrete Random Variable and a Continuous Random Variable?

Back

Discrete Random Variables have distinct outcomes; Continuous Random Variables can take any value within a range.

Front

What is the formula for calculating the probability of an event?

Back

P(E) = \frac{Number \ of \ favorable \ outcomes}{Total \ number \ of \ outcomes}.

Front

What does the term 'bimodal' refer to in statistics?

Back

A distribution with two different modes (peaks).

Front

What is the significance of the mean in a data set?

Back

The mean is the average value, representing the central point of the data.