202 Exam 1

Question 1

Percentage Final is worth

Answer 1

30

Question 2

Percent exams are worth

Answer 2

24

Question 3

How many exams are taken

Answer 3

4

Question 4

Lecture percent

Answer 4

10

Question 5

How many lectures taken

Answer 5

10

Question 6

Homework percent

Answer 6

15

Question 7

How many homework taken

Answer 7

5

Question 8

Project percent

Answer 8

18

Question 9

How many project taken

Answer 9

9

Question 10

Packet percent

Answer 10

3

Question 11

Methods organizing and summarizing data in an easily understandable way

Answer 11

Descriptive Statistics

Question 12

Conclusion drawn from population using sample data

Answer 12

Inferential Statistics

Question 13

Numeric data generally counted

Answer 13

Discrete

Question 14

Population from which we draw inference

Answer 14

Targeted Population

Question 15

Actual population sampled

Answer 15

Sample Population

Question 16

Randomly selected from group

Answer 16

Simple Random Sample

Question 17

Population put into stratas, randomly selected from strata

Answer 17

Stratified Random Sample

Question 18

Entire groups selected

Answer 18

Cluster Sample

Question 19

Least reliable sampling result

Answer 19

Convenience Sample

Question 20

Ex: picking every 6th person

Answer 20

Systematic Sample

Question 21

Natural error due to difference between population and sample

Answer 21

Sampling Error

Question 22

Responses skewed because of social pressure

Answer 22

Behavioral Effects

Question 23

Responses not obtained

Answer 23

Nonresponse Error

Question 24

Percent of observations falling within 1 SD of the mean

Answer 24

68

Question 25

Percent of observations falling within 2 SD of the mean

Answer 25

95

Question 26

Percent of observations falling within 3 SD of the mean

Answer 26

About 100

Question 27

Proportion of observations in that or earlier classes

Answer 27

Cumulative Relative Frequency

Question 28

Proportion of observations in each class

Answer 28

Relative frequency

Question 29

When covariance is negative...

Answer 29

X and Y are negatively related

Question 30

When covariance is positive...

Answer 30

X and Y are positively related

Question 31

When covariance is 0

Answer 31

X and Y are unrelated linerally