Statistics Algebra

Find the area of the shaded region.

• 16%

• 84%

• 68%

• 34%

Find the area of the shaded region.

• 16%

• 84%

• 68%

• 34%

Test has a mean of 40 and a standard deviation of 10. What is the percent of people that scored above 62?

• 1.39%

• 45.34%

• 98.41%

• 22.34%

The following data consists of scores on a math test. Find the mode:

88, 85, 72, 68, 84, 93, 84, 78, 93, 81

• 93

• 84

• 93 and 84

• 82.6

All of the below sets have the same mean.
Set 1-Standard Deviation=3.1
Set 2-Standard Deviation=4.9
Set 3-Standard Deviation=1.7
Set 4-Standard Deviation=3.2
Which set of data probably has the points closest to the mean?

• 1

• 2

• 3

• 4

In a population of five university students with GPAs of 2.5, 2.3, 1.7, 1.4, and 1.1, a sample of three students are considered. What would be the standard deviation of the resulting sampling distribution?

• 0.53

• 0.41

• 0.35

• 0.22

What is the median commute time?

• 30 min

• 25 min

• 35 min

• 40 min

What is the range of the players' heights?

• 8 inches

• 3 inches

• 5 inches

• 7 inches

What data value is the upper quartile (Q3)?

• 64

• 62

• 66

• 58

Is the distribution below a probability distribution? Why or why not?

• Yes. All P(x) values are between 0 and 1, and ∑P(x) = 1

• No, not all P(x) values are between 0 and 1.

• No, ∑P(x) ≠ 1.