Unit 4.1 - Statistics

Question 1

Accuracy

Answer 1

Degree of conformity of a measure to a standard value.

Question 2

Bar Chart

Answer 2

Categorical data graph

Question 3

Bayes’ Theorem

Answer 3

The probability of an event occurring based upon other event probabilities

Question 4

Data

Answer 4

Numbers or information describing some characteristic.

Question 5

Data Variation

Answer 5

Measure of data scatter

Question 6

Deviation

Answer 6

Amount of difference between a value and the mean.

Question 7

Experiment

Answer 7

An activity with observable results.

Question 8

Event

Answer 8

A subset of a sample space.

Question 9

Frequency Distribution

Answer 9

Listing of data values along with their corresponding frequencies.

Question 10

Frequency Polygons

Answer 10

Frequency distribution graph

Question 11

Histogram

Answer 11

Frequency distribution graph

Question 12

Mean

Answer 12

Arithmetic average

Question 13

Mean Deviation

Answer 13

Measure of variation equal to the sum of the deviations of each value from the mean.

Question 14

Median

Answer 14

Middle value of a set of values arranged in order of magnitude.

Question 15

Mode

Answer 15

The value that occurs most frequently.

Question 16

Normal Distribution

Answer 16

Bell-shaped probability distribution.

Question 17

Outcome

Answer 17

The result of an experiment.

Question 18

Pie Chart

Answer 18

Categorical data graph %

Question 19

Probability

Answer 19

The calculated likelihood that a given event will occur.

Question 20

Process Control

Answer 20

To monitor and control a process so that the quality of the output/product improves.

Question 21

Qualitative Data

Answer 21

Values that possess names or labels

Question 22

Quantitative Data

Answer 22

that represent a measurable quantity

Question 23

Quality Assurance

Answer 23

The use of quality control techniques associated with a process.

Question 24

Reliability

Answer 24

The probability of satisfactory operation of the product in a given environment over a specified time interval.

Question 25

Sample Space

Answer 25

A set of all possible outcomes or events in an experiment that cannot be further broken down.

Question 26

Standard Deviation

Answer 26

The square root of the variance.

Question 27

Statistics

Answer 27

The collection, evaluation, and interpretation of data

Question 28

Statistical Process Control

Answer 28

SPC is a method of monitoring, controlling, and ideally improving a process through statistical analysis. Its four basic steps include measuring the process, eliminating variances in the process to make it consistent, monitoring the process, and improving the process to its best target value.

Question 29

Tolerance

Answer 29

The difference between the maximum and minimum dimensions allowed within the design of a product.

Question 30

Variance

Answer 30

The difference between samples.