
	1.	Find the mean of the set of data {67, 90, 83, 85, 73, 80, 78, 79, 68, 71}.
		A.	75.2	B.	76.9
		C.	82.2	D.	77.4
		Hint

	2.	Determine the median of the set of data {67, 90, 83, 85, 73, 80, 78, 79, 68, 71}.
		A.	78.5	B.	79
		C.	77.5	D.	78
		Hint

	3.	Draw a box-and-whisker plot for the set of data {67, 90, 83, 85, 73, 80, 78, 79, 68, 71}.
		A.		B.
		C.		D.
		Hint

	4.	Using the partial table below, what percent of the data is between 40 and 50 if the mean is 30.5 and the standard deviation is 13.8? Assume the data are normally distributed.

		A.	16.1%	B.	32.2%
		C.	24.2%	D.	12.1%
		Hint

	5.
		A.	both the size of the sample and the population	B.	none of these
		C.	the size of the sample	D.	the size of the population
		Hint

	6.	From a population of 32 items, a sample of 25 items is chosen and found to have a standard deviation of 57.0. Find the standard error of the mean.
		A.	2.28	B.	10.1
		C.	11.4	D.	7.25
		Hint

	7.	Find the class mark of 30–40 interval for the following data. 22, 35, 12, 37, 19, 36, 39, 13, 13, 36, 11, 37, 13, 38, 21, 37, 35, 29, 37
		A.	37	B.	36
		C.	38	D.	35
		Hint

	8.	The set of data below shows the number of candles sold for each day of a school fund-raiser. Name the interval that describes the most candles sold. 4, 19, 28, 33, 26, 8, 14, 18, 21, 35, 36, 11, 25, 11,13, 44
		A.	20–30	B.	10–20
		C.	30–40	D.	0–10
		Hint

	9.	Find the true statement related to the data below. 20, 15, 23, 14, 18, 12, 25, 10, 24, 12, 17
		A.	The data is more clustered between Q₁ and Q₂ than between Q₂ and Q₃.
		B.	The middle half of the data are between 17 and 25.
		C.	The data is more clustered between Q₂ and Q₃ than between Q₁ and Q₂.
		D.	The semi-interquartile range is 5.
		Hint

	10.	What is the total area under the normal curve and above the horizontal axis?
		A.	1	B.
		C.	0	D.	10
		Hint