Statistics Data Analysis Histogram Difficult Question Q18 IGCSE June 2016 

#globalmathinstitute #anilkumarmath Cumulative Frequency Graph: • Ogive Cumulative Frequ...
Q18. Miss Cook asked each student in her class how long it took them, in minutes, to travel to school that morning. The incomplete histogram shows information about the times (Frequency Density) it took the students who took no more than 30 minutes to travel to school.
a. 9 students took between 15 minutes to 30 minutes to travel to school.
How many students took no more than 30 minutes to travel to school?
b. 12 students took between 30 and 55 minutes to travel to school.
Use this to complete histogram.