How do you find the first and third quartiles of 14, 4, 13, 18, 8, 15, 8, 3, 11, 8?

Question

1462 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2017-09-20T13:30:51

#1st" quartile "=8#

#3rd" quartile"=14#

Firstly you need to arrange the numbers in order

#3, 4,8,8,8,11,13,14,15,18#

next find the Median, we have #10# number so the median is in the middle of the #" "5th" "#&#" "6th" "# numbers

#3, 4,8,8,8,color(blue)(M)11,13,14,15,18#,

the #1st" quartile "# is the middle number of the lower half.

#3, 4,color(red)(8),8,8,color(blue)(M)11,13,14,15,18#,

the third quartile is the middle of the top half

#3, 4,color(red)(8),8,8,color(blue)(M)11,13,color(green)(14),15,18#,

we have

#1st" quartile "=8#

#3rd" quartile"=14#