spain-selectividad 2018 Q4

spain-selectividad · Other · selectividad__madrid_matematicas-II_ordinaria 2.5 marks Probability Definitions Conditional Probability and Bayes' Theorem
60\% of sales in a large department store correspond to items with reduced prices. Customers return 15\% of the discounted items they purchase, a percentage that decreases to 8\% if the items were purchased at full price.
a) (1.25 points) Determine the overall percentage of returned items.
b) ( 1.25 points) What percentage of returned items were purchased at reduced prices? 
60\% of sales in a large department store correspond to items with reduced prices. Customers return 15\% of the discounted items they purchase, a percentage that decreases to 8\% if the items were purchased at full price.

a) (1.25 points) Determine the overall percentage of returned items.

b) ( 1.25 points) What percentage of returned items were purchased at reduced prices?
Paper Questions
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