The table shows the types of customer complaints received by an online business in a month - HSC - SSCE Mathematics Standard - Question 19 - 2022 - Paper 1
Question 19
The table shows the types of customer complaints received by an online business in a month.
Type of complaint Frequency Cumulative frequency Cumulative percentage
S... show full transcript
Worked Solution & Example Answer:The table shows the types of customer complaints received by an online business in a month - HSC - SSCE Mathematics Standard - Question 19 - 2022 - Paper 1
Step 1
What are the values of A and B?
96%
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Answer
To find the value of A, we calculate the cumulative frequency for 'Delivery fee':
A=98+62=160
Next, we calculate the value of B, using the cumulative percentage formula:
B=200192×100%=96%
Step 2
Which types of complaints will the manager address?
99%
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Answer
The manager will address the types of complaints that make up 80% of the total.
From the Pareto chart, the types of complaints contributing to 80% are:
Stock shortage
Delivery fee
Therefore, the manager will address 'Stock shortage' and 'Delivery fee'.
