RAINBOW RUMBLE STATS EDITION

A

1

Sum of all numbers divided by the count.

MEAN

2

Three values that split sorted data into four parts.

QUARTILES

3

What is the first step in finding mean, median and mode?

arrange the data in ascending order

4

most frequent number

MODE

5

Any of the nine values that divide the sorted data into ten equal parts.

DECILES

B

1

2nd quartile is also called _____.

Median

2

If the 1st Quartile is 15 and the 2nd Quartile is 30, what is the Interquartile Range? 

15

3

If a data set has 20 scores, what is the position of the median?

10.5th 

4

Middle value in an ordered list.

MEDIAN

5

Given the data set of exam scores: 

12,15,18,20,22,25,30

1. Find the second quartile?

20

C

1

Given the data set of exam scores: 

12,15,18,20,22,25,30

 

What is the 1st quartile?

15

2

Given the data set of exam scores: 

12,15,18,20,22,25,30

 

What is the upper quartile?

25

3

The formula below is called _____.

lower value + decimal (upper-lower)

Linear Interpolation

4

_________ are the ninety-nine scores which divides the data into hundred equal parts.

Percentiles

5

From the index of 60th percentile through 90th percentile we need to round ____.

down