Spiral review #5

Front

What is the median of the following set of numbers: 3, 5, 7, 9, 11, 8, 3?

Back

The median is 7.

Front

What is the mode of the following set of numbers: 24, 14, 34, 30?

Back

The mode is 24.

Front

What is the range of the following set of numbers: 3, 5, 7, 9, 11, 8, 3?

Back

The range is 8.

Front

How do you describe a distribution that is skewed to the right?

Back

A distribution that is skewed to the right has a longer tail on the right side, indicating that there are a few higher values.

Front

What is the formula to calculate the Z-score?

Back

Z = (X - mean) / standard deviation.

Front

If the mean is 56 and the standard deviation is 4.3, what is +2 standard deviations from the mean?

Back

64.6.

Front

What does a Z-score of -2.2 indicate about a data point?

Back

It indicates that the data point is 2.2 standard deviations below the mean.

Front

What is the definition of standard deviation?

Back

Standard deviation is a measure of the amount of variation or dispersion in a set of values.

Front

How do you find the range of a data set?

Back

The range is found by subtracting the smallest value from the largest value.

Front

What does it mean if a data set is symmetrical?

Back

A symmetrical data set has a balanced distribution, where the left and right sides are mirror images.