Week 5

Question 1

___ is a collection of raw facts.

Answer 1

Data

Question 2

the mathematical term for average is the _____. it is found by adding all the scores together, and dividing by the number of scores

Answer 2

Mean

Question 3

AN ____ is a score separated from the majority of scores, by being either much higher or much lower.

Answer 3

Outlier

Question 4

____ is the study of data. it involves the collection and analysis of data which is used to make decisions about real life situations and problems.

Answer 4

Data analysis

Question 5

______ data is also known as categorical or descriptive data. this data can be divided into categories.

Answer 5

Qualitative

Question 6

A ___ chart is a simple way to display qualitative [descriptive] data to highlight relative frequencies {proportions}. it is shaped like a circle.

Answer 6

Pie

Question 7

The ___ is the name given to each value in a data collection.

Answer 7

Score

Question 8

____ is the plural of axis

Answer 8

axes

Question 9

The ___ is the number of times a particular score occurs.

Answer 9

Frequency

Question 10

____ charts are appropriate for qualitative data and discrete numerical data sets which have few distinct values. they are sometimes referred to as column graphs.

Answer 10

Bar

Question 11

____ quantitative data refers to numerical data with separate values, which can be counted. there are no in-between values.

Answer 11

Discrete

Question 12

A ___ table is used to organise data. two main columns in the table are the score (x) column, which is often labelled with the variable name, and the frequency (y) column

Answer 12

frequency distribution

Question 13

The middle score is called the ____

Answer 13

Median

Question 14

A ____ is a selected number of members of the population of interest. it is usually selected in such a way as to be representative of the entire population.

Answer 14

Sample

Question 15

The ____ is the highest score minus the lowest score.

Answer 15

Range

Question 16

A _____ or ____ is a diagram that shows data or information. Examples: Histogram, bar chart, tbe el bgaya m9a

Answer 16

Graph or plot

Question 17

____ quantitative data refers to numerical data is measure, and has a continuous range of values.

Answer 17

Continuous

Question 18

_____ data is also known as numerical data. this is data that has a numerical value.

Answer 18

Quantitative

Question 19

The ____ is the horizontal across the page axis and the ____ is the vertical up and down axis

Answer 19

X-axis

Y-axis

Question 20

The _____ refers to the units used on the axes of a graph.

Answer 20

Scale

Question 21

if there are a lot of scores, they are grouped into regular classes or intervals so that they can be recorded in an efficient way in a frequency distribution table. this is called ___ daata.

Answer 21

Grouped

Question 22

The ___ axis on a histogram does not need to commence at zero, but the classes shown on the axis should be equal widths.

Answer 22

Horizontal

Question 23

The ____ axis on a histogram represents the frequency of observations. the frequency must start from zero.

Answer 23

Vertical

Question 24

population data is data collected form the entire ____

Answer 24

Population

Question 25

A _____ is also known as a key. it is a symbol that helps you to read a graph.

Answer 25

Legend

Question 26

The ____ is the most common score. that is, it is the score with the highest frequency.

Answer 26

Mode

Question 27

For some data, there may be a sequence in which the data were collected over time. these data sets are sometimes called ____

Answer 27

Time series

Question 28

A ____ is an appropriate graph to show the distribution of a numerical variable, typically when the data set is large.

Answer 28

Histogram

Question 29

The _____ is the proportion of the overall data taken up by each score. it is calculated for each score by dividing its frequency by the total number of observations.

Answer 29

Relative frequency