Find the median, upper and lower quartiles of these numbers: 160, 390, 169, 175, 125, 420, 171, 250, 210, 258, 186, 243

Order the data:125, 160, 169, 171, 175, 186, 210, 243, 250, 258, 390, 420Find middle observation:[125, 160, 169, 171, 175, 186] | [210, 243, 250, 258, 390, 420]Median = (186 + 210)/2 = 198Find middle observation of each half:[125, 160, 169 | 171, 175, 186], [210, 243, 250 | 258, 390, 420]Lower quartile = (169 + 171)/2 = 170, Upper quartile = (250 + 258)/2

SL
Answered by Samuel L. Maths tutor

3364 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

Solve the simultaneous equations: 2x+y=18 and x-y=6


x/(2x-3) + 4/(x+1) =1 [5 mark question]


Solve the equation x^2 + 8x = -15


solve the inequality 5x + 3> 3x - 6


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences