The statistics Education marks (given as percentage) of 50 students in math module wer: 35;53;44;79;76;58;65;54;53;39;54;44;52;47;95;77;51;45;69;72;36;82;33;50;87;52;69;70;47;52;80;90;64;69;45;38;52;67;78;92;56;55;77;45;78;45;66;72;87;60
in Statistics Answers by

Your answer

Your name to display (optional):
Privacy: Your email address will only be used for sending these notifications.
Anti-spam verification:
To avoid this verification in future, please log in or register.

1 Answer

To find the quartile the dataset must be arranged in order, least to greatest.

Then we divide the data into two lots of 25, and we can then define the median which in this case lies midway between X₂₅ and X₂₆, that is, between 56 and 58, so the median, also known as quartile 2 (Q2), is 57.

Next we find the middle datum of the two lots of data, so that gives us Q1 (lower quartile)=X₁₃=47 and Q3= (upper quartile)=X₃₈=76.

The quartiles are markers dividing the whole dataset into quarters.

by Top Rated User (782k points)

Related questions

1 answer
asked Feb 28, 2019 in Statistics Answers by thembinkosi | 187 views
0 answers
0 answers
Welcome to, where students, teachers and math enthusiasts can ask and answer any math question. Get help and answers to any math problem including algebra, trigonometry, geometry, calculus, trigonometry, fractions, solving expression, simplifying expressions and more. Get answers to math questions. Help is always 100% free!
85,303 questions
90,718 answers
100,937 users