Calculating Standard Deviation

Find the z-score value corresponding if the location is below the mean by 2 standard deviations

• +2.00

• -2.00

• +1.25

• -1.00

Which data set has the largest standard deviation?

• Set 1

• Set 2

• Set 3

• Set 4

Ervin bowled 7 games last weekend. His scores are: 155, 165, 138, 172, 127, 193, 142. What is the sample standard deviation of Ervin's scores?

• 511.33

• 22.61

• 438.48

• 20.94

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 standard deviation to the nearest hundredth for the data given:

Mathematical Equivalence

ON

What is the standard deviation of this distribution? (how far is it from the mean to the first stdev line?)

• 1010

• 20

• 60

• 40

Ervin bowled 7 games last weekend. His scores are: 155, 165, 138, 172, 127, 193, 142. What is the standard deviation of Ervin's scores?

• 511.33

• 22.61

• 438.48

• 20.94

A random sample of 10 Maryville high school students reveals data about their sleep in hours per school night:

4.5, 5, 8, 8.5, 7, 6, 6.5

Determine the standard deviation and round to one decimal place.

Mathematical Equivalence

ON

What is the standard deviation of these numbers?

Mathematical Equivalence

ON

What is the standard deviation for the data given:

{12, 13, 29, 18, 61, 35, 21}

Round to the hundredths place.

Mathematical Equivalence

ON