题目
BRED001 Week 3 Practice Quiz
数值题
‣Socceroos Ltd manufactures World Cup soccer balls in 2 models: premium and standard. An auditor engaged in a compliance audit of the firm is validating the sales account for April. She has collected 200 invoices for the month. Of the 140 retail invoices, 28 are for the standard model. Of the wholesale invoices, 24 are for the standard model. If the auditor selects one invoice at random, Find the following probabilities that the invoice selected for the premium model and record the probability in percentage You can use the contingency table : Wholesale Retail Total Premium Standard Total
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标准答案
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思路分析
We start by organizing the data into a contingency framework to separate premium and standard models across sales channels.
Step 1: Determine channel totals
- Retail invoices: 140
- Wholesale invoices: 200 total invoices − 14......Login to view full explanation登录即可查看完整答案
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