Topic 8 vocabulary

Question 1

Deviation

Answer 1

The deviation of a data value indicates how far that data value is from the mean–to calculate the deviation, subtract the mean from the data value.

Question 2

Absolute Deviation

Answer 2

The absolute value of each deviation is called absolute deviation

Question 3

mean Absolute Deviation

Answer 3

The mean absolute deviation (mad) is the mean of the absolute deviation.

Question 4

survey

Answer 4

A survey is a method of collecting information about a certain group of people, (asking them the same question.)

Question 5

Data

Answer 5

When information is collected, the facts or numbers gathered are called data.

Question 6

population

Answer 6

The population is the entire set of items from which Data can be selected

Question 7

census

Answer 7

an official count or survey of a population

Question 8

sample

Answer 8

A part of a whole or quantity intended to show what the whole is like

Question 9

parameter

Answer 9

When data is gathered from a population, The characteristic used to describe the population is called a parameter

Question 10

statistic

Answer 10

When data is gathered from a sample, the characteristic used to describe the sample is called statistic

Question 11

Random sample

Answer 11

A random sample is a sample that is selected from the population in such a way that every member of the population has the same chance of being selected.