Topic 8: Statistics

Question 1

Statistical Question

Answer 1

A question that has many different, or variable, answers.

Question 2

Mean

Answer 2

Average; the sum of all the numbers in the data set added together and divided by the total number of data values in the set

Question 3

Median

Answer 3

the middle score in a distribution

Question 4

Mode

Answer 4

The value that occurs most frequently in a given data set; Most Often

Question 5

Range

Answer 5

the difference between the highest and lowest scores in a data set

Question 6

Box Plot

Answer 6

a diagram that shows the distribution of data values using the median, quartiles, minimum value, and maximum value on a number line

Question 7

Quartiles

Answer 7

Values that divide a data set into four equal parts

Question 8

Frequency Table

Answer 8

Shows the number of times a value occurs in each category or interval

Question 9

Histogram

Answer 9

a graph that uses bars to show how characteristics or values are distributed within a group

Question 10

Absolute Deviation

Answer 10

the absolute value of the difference between a value and the mean

Question 11

Mean Absolute Deviation

Answer 11

the average (or mean) of all the absolute deviations (or differences)

Question 12

Interquartile Range

Answer 12

A measure of variability, defined to be the difference between the third and first quartiles.

Question 13

Outlier

Answer 13

a data value that is very different from the other values

Question 14

Data Distribution

Answer 14

How the data values are arranged. To describe, you evaluate its measure of center and variability, and its overall shape.

Question 15

Symmetrical

Answer 15

same on both sides