Basic Statistics & Probability
Answer the following questions, based on these box plots, on the amount of time boys and girls spend per day on social networking sites.
Approximate the girls' IQR and the boys' IQR.
a) The girls' lower quartile is about 1.25 hr/day and the upper quartile is about 3.5 hr/day.
Girls' IQR = 3.5 – 1.25 = 2.25 hours/day