Exam 1 Definitions Part 3 Flashcards Preview

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Flashcards in Exam 1 Definitions Part 3 Deck (12):
1

Arithmetic mean

The number obtained by adding the values and dividing the total by the number of values

2

£

addition

3

X

variable

4

n

number of data values in a sample

5

N

number of data values in a population

6

X-bar

Mean of a set sample values

7

Mu

Mean of all values in a population

8

Median

The middle value when the original data values are arranged in order of increasing magnitude

9

Mode

The score that occurs most frequently

10

Midrange

The value midway between the highest and lowest values in the original data set

11

Symmetric

Data is symmetric if the left half of its histogram is roughly a mirror of its right half

12

Skewed

Data is skewed if it is not symmetric and if it extends more to one side than the other