Mode:

The score that most shows up or

frequently occurs in a distribution.

Example: Scores (2,3,4,5,5,5,6,6,6,6,7,8,9)

the mode is Six (6) because

it appeared four time which is the

most a number appeared on

the distribution.

Mean:

The average of the distribution

which is solved by adding all numbers then

dividing by how many numbers you added.

Example: Scores (4,5,6,2,5,6,3,7,)

4+5+6+2+5+6+3+7 = 38

divided by how many numbers added

38 / 8 = 4.75

Mean =4.75

Median:

the center or middle score 

of a distribution.

Example: Scores (4,5,6,7,8,9,10)

4, 5, 6, 7, 8,9,10

Seven is the median because

half of the scores are above it

and half are below.

Range:

the difference of the highest and

the lowest score of the distribution.

Example: Score (2,3,4,5,6,7,8,9,10)

Highest score: 10

Lowest score: 2

Subtract 10-2 = 8

Eight is the range.

Standard Deviation:

computation of how much scores 

alter around the mean score.

The Normal Curve:

an equal or symmetrical visual 

presentation of a distribution of data. 

It is also known as the bell curve.

Statistical Significance:

a statistical assertion of how likely an 

obtained result happened by chance.