Unit 2 Module 7

Question 0

Histogram

Answer 0

A bar graph depicting a frequency distribution

Question 1

Descriptive statistics

Answer 1

Numerical data used to measure and describe characteristics of groups

Question 2

Skewed distribution

Answer 2

A representation of scores that lack symmetry around their average

Question 3

Standard deviation

Answer 3

A computed measure of how much scores vary around the mean score

Question 4

Normal curve

Answer 4

A symmetrical bell shaped curve that describes the distribution of data

Question 5

Inferential statistics

Answer 5

Help us determine if results can be generalized to a larger population

Question 6

Statistical significance

Answer 6

How likely it is than an obtained result occurred by chance

Question 7

Measure of central tendency

Answer 7

Single score that represents a whole set of scores (mean, median, mode)

Question 8

Measures of variation

Answer 8

Tells us how diverse data is. (Range and standard deviation)

Question 9

Normal curve

Answer 9

Bell shaped

Question 10

How do we know an observed difference can be generalized for another pop?

Answer 10

1. Sample study was of a larger pop
2. Observations had a low variability
3. Sample consisted of more than a few cases
4. Difference was statistically significant