Probability Between 2 Values Assignment

The price for a particular new car is normally distributed. What is the mean as shown in the curve?

The price for a particular new car is normally distributed. What is the standard deviation?

The price for a particular new car is normally distributed.

What is the percentage of buyers who paid between $16,500 and $17,500?

The price for a particular new car is normally distributed.

What is the percentage of buyers who paid between $15,500 and $17,000?

In a normal distribution, the z-score for the mean is 0.

• True

• False

A set of data items is normally distributed with a mean of 60 and a standard deviation of 8. Covert the data item to a z-score.

68

Mathematical Equivalence

ON

A set of data items is normally distributed with a mean of 60 and a standard deviation of 8. Covert the data item to a z-score.

52

Mathematical Equivalence

OFF

A set of data items is normally distributed with a mean of 60 and a standard deviation of 8. Covert the data item to a z-score.

78

Mathematical Equivalence

OFF

Intelligence quotient (IQs) tests are normally distributed with a mean of 100 and a standard deviation of 16.

Find the percentage of tests that scored less than 130.

Intelligence quotient (IQs) tests are normally distributed with a mean of 100 and a standard deviation of 16.

Find the percentage of tests that scored higher than 115.