Sunday H.W.( 10/11/2024)-(Quartiles & percentiles)

How many percent corresponds P₂₅ if you will interpret it?

• 10%
• 25%
• 50%
• 60%

What is the lower quartile of the data 4, 1, 5, 2, 6, 5, 3, 8, 7,and 9?

• 2.5

• 3.25

• 3.5

• 4

Find the median, first quartile, third quartile, and interquartile range of the data.

32, 53, 72, 66, 47, 54, 49, 67, 71

• Median: 54

  First Quartile: 49

  Third Quartile: 67

  IQR: 18

• Median: 54

  First Quartile: 48

  Third Quartile: 69

  IQR: 21

• Median: 54

  First Quartile: 48

  Third Quartile: 69

  IQR: 22

• Median: 54

  First Quartile: 49

  Third Quartile: 69

  IQR: 20

Given the data: 136, 150, 119, 150, 125, 140. Find the upper quartile (Q3).

(Hint: put the numbers in order and find the median to help you find Q3)

•  125
• 150
• 139.5
• 143

Find the IQR  of the data

20, 22, 25, 29, 31

• 30
• 21
• 25
• 9

Quartiles are points that divide the data into four equal parts

• True

• False

• Maybe

• Not Sure

The 2^nd quartile is also equal to

• Lower quartile

• Middle quartile

• Upper quartile

• Mean

When a distribution is divided into hundred equal parts, each score point that describes the distribution is called a

• percentile

• quartile

• decile

• median

divides the number of data points into four parts, or quarters,

• Quartiles

• Deciles

• Percentiles

• Range

It is the Middle Quartile or the median

• Quartile 1

• Quartile 2

• Quartile 3

• Quantiles