A hat contains four balls. The balls are numbered 3, 6, 6, and 7. One ball is randomly selected and not replaced, and then a second ball is selected. The numbers on the two balls are added together.

A fair decision is to be made about which of three sizes of ice cream cone will be ordered, using the sum of the numbers on the balls. The sizes are small, medium and large.

Which description accurately explains how a fair decision can be made in this situation?

If the sum is 9, a small cone will be ordered.
If the sum is 10 or 13, a medium cone will be ordered.
If the sum is 12, a large cone will be ordered.

If the sum is 9, a small cone will be ordered.
If the sum is 10 or 12, a medium cone will be ordered.
If the sum is 13, a large cone will be ordered.

If the sum is 9 or 10, a small cone will be ordered.
If the sum is 12, a medium cone will be ordered.
If the sum is 13, a large cone will be ordered.

If the sum is 9 or 12, a small cone will be ordered.
If the sum is 10, a medium cone will be ordered.
If the sum is 13, a large cone will be ordered.

Name and describe the three most important measures of central tendency. choose the correct answer below. a. the mean, sample size, and mode are the most important measures of central tendency. the mean of a data set is the sum of the observations divided by the middle value in its ordered list. the sample size of a data set is the number of observations. the mode of a data set is its highest value in its ordered list. b. the sample size, median, and mode are the most important measures of central tendency. the sample size of a data set is the difference between the highest value and lowest value in its ordered list. the median of a data set is its most frequently occurring value. the mode of a data set is sum of the observations divided by the number of observations. c. the mean, median, and mode are the most important measures of central tendency. the mean of a data set is the product of the observations divided by the number of observations. the median of a data set is the lowest value in its ordered list. the mode of a data set is its least frequently occurring value. d. the mean, median, and mode are the most important measures of central tendency. the mean of a data set is its arithmetic average. the median of a data set is the middle value in its ordered list. the mode of a data set is its most frequently occurring value.