AP Stat Random Variables

Draw a box plot for the data

0 1 5 13 14 15 16 17 21 24 24 27 28 30 35

Type of Data arrangement

• Symmetrical

• Hairline

• Skewed Right

• Skewed Left

Match the following

• Voluntary Response

• Survey all employees at 5 randomly selected stores

• Cluster

• Readers choose to respond to a poll

• Systematic

• Number the players 1 - 1000 and use a random number generator to select 50

• Stratified

• Select every 5th student

• SRS

• Randomly select 6 stores from each of the states

An event A will occur with probability 0.5. An event B will occur with probability 0.6. The probability that both A and B will occur is 0.1.
The conditional probability of A given B is

• .5

• .3

• .2

• 1/6

If you buy one ticket in the Provincial Lottery, then the probability that you will win a prize is 0.11. If you buy one ticket each month for five months, what is the probability that you will win at least one prize?

• .55

• .50

• .44

• .45

A die is loaded so that the number 6 comes up three times as often as any other number.  What, then, is the probability of rolling a 6?

• .125

• .375

• .500

• .250

Based on the Empirical Rule, make the following true:

​ (a)   of data is contained in one standard deviation from the mean.

​ (b)   of data is contained in two standard deviations below the mean.

​ (c)   of data is contained in three standard deviations above the mean.

• 68%

• 47.5%

• 49.85%

• 95%

• 99.7%

• 34%

The pth percentile is interpreted as the value that has p% of the data less than or equal to it. Put the following in percentile order:

• 0%

• Min

• Median

• Q3

• Max

Choose all correct answers: Measures the number of standard deviations a data value falls above or below the mean.

• Variance

• Standardized Score

• Probability

• Residual

• Z-Score