Example: In a data set 1,3,4,5,11,12,14,20,11,2 there are 10 numbers in the data set
Organize the data by scanning and writing down the numbers in increasing number. While scanning cross out the numbers that were already used to keep track Example: In a data set 1,3,4,5,11,12,14,20,11,2 the numbers would be organized as 1,2,3,4,5,11,11,12,14,20
The 1st Quartie equation ¼ (n+1) The median equation ½(n+1) The 3rd Quartile ¾(n+1)
Example: In a data set 1,2,3,4,5,11,11,12,12,14,20 (organized in increasing order) the minimum is 1 (lowest) and maximum is 20 (largest).
Example: In a data set 1,2,3,4,5,11,11,12,14,20 n=10, the equation will be ¼(10+1)
Example: In a data set 1,2,3,4,5,11,11,12,14,20 n=10, the equation will be ¼(10+1) which equals 11/4 or 2. 75. This means that the first Quartile is located at position 2. 75 in the data set.
Example: In a data set 1,2,3,4,5,11,11,12,14,20 because the equation gave the decimal 2. 75, the 1st Quartile is located between the 2nd and 3rd numbers in the data set
A decimal means that the quartile is located in between the two numbers located left and right of it. {“smallUrl”:“https://www. wikihow. com/images/thumb/f/f9/1st-quart-slution-1. png/460px-1st-quart-slution-1. png”,“bigUrl”:"/images/thumb/f/f9/1st-quart-slution-1. png/724px-1st-quart-slution-1. png",“smallWidth”:460,“smallHeight”:355,“bigWidth”:725,“bigHeight”:560,“licensing”:"<div class="mw-parser-output">
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0/">Creative Commons</a>\n</p></div>"} Add the left and right numbers together then divide by two Example: In a data set 1,2,3,4,5,11,11,12,14,20 the number is in the 2.
75th position which is between the 2nd and 3rd numbers meaning we take (2+3) then divide by 2 which equals 2.
5[3] X Research source
Example: In a data set 1,2,3,4,5,11,11,12,14,20 n=10, The equation will be ½(10+1)
Example: In a data set 1,2,3,4,5,11,11,12,14,20 n=10, The equation ½(10+1) will equal 5. 5, which places the median at position 5. 5
Example: In a data set 1,2,3,4,5,11,11,12,14,20 n=10 the median is located position 5. 5 which is between the 5th and 6th number. To find the median we will take the average of the 5th and 6th numbers. Taking the average means adding the two numbers together and dividing by 2. Example: 1,2,3,4,5,11,11,12,14,20 the numbers beside 5. 5 is 5 and 11 therefore the equation goes (5+11)/2=8. The Median then equals 8.
Example:#*Example: In a data set 1,2,3,4,5,11,11,12,14,20,20 n=11, plug 11 in equation ½(11+1) the median will be at position 6 so the median is 11.
Example: In a data set 1,2,3,4,5,11,11,12,14,20 n=10, The equation will be ¾ (10+1)
Example: In a data set 1,2,3,4,5,11,11,12,14,20 n=10, The equation will be ¾ (10+1) will equal 33/4 . This means that the third Quartile is located at position 8. 25.
Example: In a data set 1,2,3,4,5,11,11,12,14,20 the number is in the 8. 25th position, therefore, the 3rd Quartile is between the 8th and 10th numbers
Add the left and right numbers together then divide by two. Example: In a data set 1,2,3,4,5,11,11,12,14,20 the number is in the 8. 25th position which is between the 8th and 10th numbers meaning we take (12+14) then divide by 2 which equals 13
Doing this will help differentiate each part of the data Example: In a data set 1,2,3,4,5,11,11,12,14,20 the 5 number summary will be 1,2. 5,8,13,20