S1 Median & IQR

A restaraunt owner collects information on waiting times before being served.

Find the median iqr of this data

14,14,14,15,15,15,15,15,15,15,16,16,16,16,16,17,17,17,18,25

There are 20 values. Is the formula n/2 for the median or n+1/2?

Thank you so much.

Reply 1

TenOfThem

18

Original post by slothgal

A restaraunt owner collects information on waiting times before being served.

Find the median iqr of this data

14,14,14,15,15,15,15,15,15,15,16,16,16,16,16,17,17,17,18,25

There are 20 values. Is the formula n/2 for the median or n+1/2?

Thank you so much.

(n+1)/2

Reply 2

slothgal

OP

2

thanks, would you mind explaining when you use each one