QUARTILES

QUARTILE JOHNNY REVENGE FORMULA ?

(A+B)/2= QUARTILE RANGE

Name the first, median and the third quartiles?

1st= 25th median 2nd= 50th 3rd= 75th

how would you get equivalent class widths in in each quarter ?

4 / n n = sample size or amount of observations 4 = represent quarters

Quartiles divide you date into ?

4 segments = 1111 2222 4444 7777

In a set of 12 numbers the third quartile, or 75th percentile, is .75 of the way between the value in position of the ?

9th and the value in position 10th .

IN A SET OF NUMBERS WHAT VALUE REPRESENTS A AND B IN THE QUARTILE FORMULA?

A REPRESENTS THE NUMBER IN THE QUARTER B REPRESENTS THE NUMBER AFTER THE QUARTER EX. A SET OF 8 NUMBERS: 15 67 88 99 A B 1ST Q = BETWEEN 5 AND 6 2ND Q= BETWEEN 7 AND 8 3RD Q= BETWEEN 8 AND 9

EX: How would you compute the data for the 1st Quartile?

A+B/2

IQR formula?

IQR = Q3 - Q1

What type of measurement is quartile representing?

Measures of location

The position of each observation in the sorted data is shown directly below its value just like?

Percentiles

What is the IQR?

The interquartile range is the scores that range from quartile 1 to quartile 3 and is a measurement of the middle 50% of the scores in a distribution. The middle 50% generally holds the majority of the scores and is a good way to get an estimation of an average score.

What is the IQR? How much of the data does it represent?

The interquartile range is the scores that range from quartile 1 to quartile 3 and is a measurement of the middle 50% of the scores in a distribution. The middle 50% generally holds the majority of the scores and is a good way to get an estimation of an average score.

Why do we need quartiles in statistics?

The main reason is to perform further calculations, like the interquartile range, which is a measure of how the data is spread out around the mean.

whats the difference between a quarter and a quartile?

There's a slight difference between a quarter and quartile. A quarter is the whole slice of pizza, but a quartile is the mark the pizza cutter makes at the end of the slice. example quarter: 1111 2222 4444 7777 1111= would represent the quarter (the 1/4 slice) example quartile: 1111 2222 4444 7777 1 2 = (between 1 and 2 the pizza maker slices the pizza)

The first step in arranging quartiles is ?

arranging in ascending order

Quartiles are divided how?

divide a data set into four parts, each part containing approximately one-fourth, or 25%, of the observations. Quarter 1 = first quartile, Quarter 2 = second quartile, or (also the median) Quarter 3 = third quartile, or