Random Errors

Question 1

The arithmetic average of the population. The true mean for the entire population.

Answer 1

Population Mean

Question 2

Representing the arithmetic average of the sample

Answer 2

Sample Mean

Question 3

Represents a standard deviation calculated as a weighted average from multiple subsets of data from one population.

Answer 3

Pooled Standard Deviation

Question 4

The square of the standard deviance

Answer 4

Variance

Question 5

A bell-shaped curve produced when a very large number of individual errors are plotted.

Answer 5

Gaussian Curve or Normal Error Curve

Question 6

The difference between the lowest and the highest data points in a set and results from an accumulation of all random uncertainties in the experiment.

Answer 6

Spread

Question 7

Produced when results fall into one of two categories, success or failure.

Answer 7

Binomial Distribution

Question 8

Subsets of populations.

Answer 8

Sample

Question 9

Defined by the experimenter and represent all measurements of interest.

Answer 9

Population

Question 10

Rqepresent the data values obtained in an analysis or experiment.

Answer 10

Variables

Question 11

Qualities that define a population or distribution.

Answer 11

Parameters

Question 12

An estimate of a parameter made from a sample of data.

Answer 12

Statistic

Question 13

A measure of the precision of the population.

Answer 13

Population Standard Deviation

Question 14

Indicates the number of independent results that enter into the computation of the standard deviation.

Answer 14

Degrees of Freedom

Question 15

An estimate of the population variance

Answer 15

Sample Variance