Instruction
When 30 randomly selected customers left a convenience store, each was asked the number of items he or she purchased. Construct a frequency distribution (5 marks) for the data and construct a properly labelled histogram (4 marks), frequency polygon (2 marks), and cumulative frequency curve (Ogive) (3 marks) on the same graph provided below. Analyze the data (2 marks).
2 9 4 3 6 6 2 8 6 5 7 5 3 8 6 6 2 3 2 4 6 9 9 8 9 4 2 1 7 4
Class Boundaries Frequency/ Tally Relative Frequency Cumulative Frequency Cumulative Relative Frequency
0.5 – 1.5 1 1
1.5 – 2.5 5 6
2.5 – 3.5 3 9
3.5 – 4.5 4 13
4.5 – 5.5 2 15
5.5 – 6.5 6 21
6.5 – 7.5 2 23
7.5 – 8.5 3 26
8.5 – 9.5 4 30
Total f = 30 rf = crf =
Analyse the work you just did.
Analyse the work you just did. __________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
34. Construct a Pareto chart using the data below detailing the on cream for 40 different students. (5 Marks)
N V C C V MCC N V MCC N
S N V TT MCC RR MCC S C TT
C N RR N S C N MCC TT MCC
C TT V C N V C MCC S C
Ice-cream Flavour Tally
N - Neapolitan;
V - Vanilla;
C - Chocolate;
MCC - Mint Chocolate Chip;
RR- Rocky Road;
TT - Tiger Tail;
S - Strawberry