Duplicate of Duplicate of Statistics 2.1 and 2.2 Test Review

Question 1

Does your stem and leaf plot need to be in numerical order?

Accepted Answer

yes

Question 2

Which group is the control group?

Accepted Answer

Group 1

Question 3

Which of these is a bar graph that summarizes a frequency distribution?

Accepted Answer

Histogram

Question 4

A variable that can be placed into distinct categories, according to some characteristic

Accepted Answer

qualitative

Question 5

If you have 30 data points and a frequency of 3, what is this class' relative frequency?

Accepted Answer

.1

Question 6

Consist of generalizing from samples to populations, and making predictions from data

Accepted Answer

inferential statistics

Question 7

What is the sum of relative frequencies of data?

Accepted Answer

1

Question 8

Which letter on the graph is associated with the frequency of the Histogram?

Accepted Answer

B

Question 9

All subjects to be studied (human or otherwise) is called the

Accepted Answer

population

Question 10

What shape is the following graph?

Accepted Answer

skewed left

Question 11

choose a starting value at random, then choose every Kth member of the population

Accepted Answer

systematic sampling

Question 12

Classifies data into categories that can be ranked; no differences between the ranks exist

Accepted Answer

ordinal

Question 13

Type of variable that can assume an infinite number of values

Accepted Answer

continuous

Question 14

Find the relative frequency for the first class

Accepted Answer

.07

Question 15

How many treatments are there?

Accepted Answer

2

Question 16

Ranks data, and precise differences between units of measure do exist;there is no meaningful 0

Accepted Answer

interval

Question 17

Determine the range of your data if you have a high of 1143 and a low of 77.

Accepted Answer

1066

Question 18

Which is a table that shows "classes" or "intervals" of data entries with a count or tally?

Accepted Answer

frequency distribution

Question 19

The value that lies in the middle of the data when it is ordered is

Accepted Answer

Median

Question 20

This is defined by: (Class lower limit + Class upper limit)/2

Accepted Answer

Midpoint

Question 21

Science of conducting studies to collect, organize, analyze and draw conclusions from data

Accepted Answer

Statistics

Question 22

When making graphs, what do you ALWAYS need to do?

Accepted Answer

label axis

Question 23

Type of variable that assume values that can be counted

Accepted Answer

discrete

Question 24

Which letter is associated with the data values of the histogram?

Accepted Answer

C

Question 25

Determine the preferred width of each class if you use 8 classes, a high of 99, and a low of 2.

Accepted Answer

13

Question 26

Identify the subjects.

Accepted Answer

200 first-grade students

Question 27

What shape is the following graph?

Accepted Answer

uniform

Question 28

Possesses all the characteristics of interval measurement, and there exist a true zero.

Accepted Answer

ratio

Question 29

What is the upper limit of the class interval 80–89?

Accepted Answer

89

Question 30

The number of data values in a given class is known as the

Accepted Answer

frequency

Question 31

The following is an example of a

Accepted Answer

Pareto Chart

Question 32

What can be calculated by subtracting the lower class limits of consecutive classes?

Accepted Answer

class width

Question 33

respondents lying, usually about illegal or unpopular behavior

Accepted Answer

response bias

Question 34

Classifies data into mutually exclusive categories in which no order or ranking can be imposed

Accepted Answer

nominal

Question 35

The data entry that occurs the most is

Accepted Answer

mode

Duplicate of Duplicate of Statistics 2.1 and 2.2 Test Review

Questions 35

Duplicate of Duplicate of Statistics 2.1 and 2.2 Test Review

Questions 35