Honor Algebra II Review Statistics 2

Front

Find two geometric means between 12 and 1500. 12 ________ ________ 1500.

Back

60, 300

Front

Randy took a test that is normally distributed. He scored a 105. The nationwide mean score is 94 with a standard deviation of 6.2. What percent of the population scored higher than Randy on the test?

Back

3.80% (Approximately 3.8%)

Front

Back

The first three terms of the sequence are 3, 12, and 48.

Front

A normally distributed data set has a mean of 0 and a standard deviation of 0.5. What percent of values are between -1.5 and 1.5?

Back

99.73%

Front

Tiffany deposited $1,000 into a savings account that compounds interest yearly. Write an equation that would best fit the data using the exponential curve of best fit.

Back

Front

What is a geometric mean?

Back

The geometric mean is the central number in a set of numbers that is found by multiplying all the numbers together and then taking the nth root, where n is the count of numbers.

Front

Define normal distribution.

Back

Normal distribution is a probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean.

Front

What is the empirical rule in statistics?

Back

The empirical rule states that for a normal distribution, approximately 68% of the data falls within one standard deviation of the mean, 95% within two standard deviations, and 99.7% within three standard deviations.

Front

How do you calculate the z-score?

Back

Front

What is the formula for compound interest?

Back