Z scores!
Uniform Distribution
Empirical Rule
Table A Values
Completely Random
100

 A z-score measures how many _______ _______ a data point is from the mean of a dataset.

 standard deviations

100

The area under any uniform distribution is what?

1

100

What 3 values are used to calculate data in relation to the Empirical Rule?

68-95-99.7

100

If my z-score is -1.08, what value would Table A give me?

0.1401

100

What is the capital of France?

Paris 

200

If a dataset has a mean of 50 and a standard deviation of 5, what is the z-score for a data point of 60?

The z score is 2


200

Looking at number 4 on the board, what percent of the data is greater than 2 and less than 5?

60%

200

What percent of data lies between + 2 standard deviations and + 3 standard deviations?

2.35%

200

If the area under a normal distribution is 0.8508, that means my z-score is what?

The z-score is 1.04

200

What is the largest planet in our solar system?

Jupiter

300

If the z-score for a data point is 0, what can you conclude about that data point?

It is the mean!

300

Looking at number 7 on the board, what percent of the data is greater than 3?

25%

300

X is a normally distributed random variable with mean 9 and standard deviation 2. 

What is the probability that x is between 5 and 11?

Use the Empirical Rule

81.5%

300

X is a normally distributed random variable, given a mean of 43 and a standard deviation of 19. 

What is the probability that x is less than 76?

Give the answer as a decimal rounded to the nearest thousandth 

(use table A)

0.959

300

What is the smallest prime number?

2

400

If a data point has a z-score of 2, a mean of 50, and the value of the data point is 70, what is the standard deviation of the dataset

The standard deviation is 10

400

Looking at number 5 on the board, what percent of the data is less than 2?

20%

400

X is a normally distributed random variable with mean 21 and standard deviation 11. 

What is the probability that x is between 32 and 54?

Use the Empirical Rule

15.85%

400

X is a normally distributed random variable, given a mean of 32 and a standard deviation of 9. 

What is the probability that x is greater than 25?

Give the answer as a decimal rounded to the nearest thousandth 

(use table A)

0.782

1 - 0.2177 = 0.7823

400

What element has the chemical symbol "Pb"?

Lead

500

In a dataset with a mean of 100 and a standard deviation of 15, what is the test score corresponding to a z-score of -2?

The test score is 70

500

Looking at number 1 on the board, what percent of the data is greater than 6?

62.5%

500

X is a normally distributed random variable with mean 17 and standard deviation 7. 

What is the probability that x is between -4 and 24?

Use the Empirical Rule

83.85%

500

X is a normally distributed random variable, given a mean of 8 and a standard deviation of 16. 

What is the probability that x is between 18 and 21?

Give the answer as a decimal rounded to the nearest thousandth 

(use table A)

0.055

0.7910 - 0.7357 = 0.0553

500

In which year did the Titanic sink during its maiden voyage?

1912

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