3. Mr Pearson carried out a survey to find how much time was needed by a group of students to complete their homework on a Thursday evening.
Number of
hours, h
osh < 0.5
0.5 sh< 1.0
1.0 1.5 30
22
19
8
Frequency
a) Does the modal class contain the median?
b) Estimate the mean (Hint: draw a table]

Ashley recently opened a store that sells only natural ingredients. she wants to advertise her products by distributing bags of samples in her neighborhood. it takes one person 22 minutes to prepare one bag. how many hours will it take to prepare 900900 bags of samples if ashley and 55 of her friends do the work?