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Flashcards in Chapter 3 Deck (33):
1

A____ is a characteristic or measure obtained by using the data values from a sample.

Statistics

2

A statistic is a characteristic or measure obtained by using the_____.

data values from a sample

3

A____ is a characteristic or measure obtained by using all the data values from a specific population.

Parameter

4

A parameter is a characteristic or measure obtained by using all the_____.

data values from a specific population.

5

The____, also known as the arithmetic average, is found by adding the values of the data and dividing by the total number of values.

Mean

6

The mean, also known as the arithmetic average, is found by_____.

adding the values of the data and dividing by the total number of values.

7

The____ denoted by m (pronounced “mew”), is calculated by using all the values in the population.

population mean

8

The____is parameter

population mean

9

____ letters are used to denote parameters,

Greek

10

____letters are used to
denote statistics

Roman

11

What is the symbol for median?

MD

12

The____is the midpoint of any data

Median

13

The median is the___of any data

Midpoint

14

The third average is called___.

Mode

15

What occurs the most in a data set?

Mode

16

A data set that has only one value that occurs with the greatest frequency is said to be____.

Unimodal

17

Unimodal is?

One value and great frequency

18

Bimodal

2 value great frequency

19

Multimodal

More than 2 value and great frequency

20

The____ is a rough estimate of the middle

Midrange

21

The midrange is found by?

Adding the lowest and highest values and divide by two.

22

Mean

Sum of values, divided by total number of values

23

Median

Middle point in data set that has been ordered

24

Mode

Most frequent data value

25

What is used to find out if the class is divided into upper or lower levels

Median

26

What is used for open end distribution

Median

27

What is the easiest to calculate

Mode

28

What is used for nominal or categorial?

Mode

29

Can data have more than one mode?

Yes

30

____, the majority of the data values fall to the left of the mean and cluster at the lower end of the distribution; the “tail” is to the right.

Positive Skewed or Right Skewed

31

In a_____, the data values are evenly distributed on both sides of the mean.

Symmetric distribution

32

The____is the highest value minus the lowest value. The symbol R is used for the range.

Range

33

What is range?

Highest value- lowest value