ou are a developmental psychologist and are interested in how math anxiety changes with age. You go into an elementary school and measure the math anxiety of 15 children who are in the 2^nd grade. Assume that this is an interval variable and that higher scores indicate higher levels of math anxiety.

These are their scores:

0, 5, 3, 6, 2, 3, 4, 1, 2, 3, 1, 5, 2, 4, 3

Question 23 (3 points)

Because this is an interval variable you are allowed to use:

Question 23 options:

	Mean
	Median
	Mode
	All of the above

Question 24 (3 points)

X² =______________, While ( X)² = _____________

Question 24 options:

	126; 28224
	168; 1936
	1936; 168
	168; 44

Question 25 (3 points)

The mean is

Question 25 options:

	15.00
	2.93
	44.00
	4.40

Question 26 (3 points)

The median is

Question 26 options:

	3
	2.50
	3.00
	3.50

Question 27 (3 points)

The mode is

Question 27 options:

	2.00
	3.00
	4.00
	5.00

Question 28 (3 points)

The range is

Question 28 options:

	7.00
	5.00
	4.00
	6.00

Question 29 (3 points)

Variance is

Question 29 options:

	1.67
	2.60
	2.78
	1.61

Question 30 (3 points)

Standard deviationis

Question 30 options:

	1.61
	2.60
	2.78
	1.67