Given:
A storeowner made a list of number of greeting cards sold last month.
The store sold 167 thank-you cards, 285 birthday cards and 56 blank cards.
Required:
What is the probability that the next customer will buy a blank card expressed as a percent?
Explanation:
We will find total number of cards sold as:
167 + 285 + 56 = 508
Now we will find percentage of each type of card sold as:
[tex]\begin{gathered} Percenatge\text{ of thank you cards sold =}\frac{167}{508} \\ =0.33^\% \end{gathered}[/tex][tex]\begin{gathered} Percentage\text{ of birthday card sold =}\frac{285}{508} \\ =0.56 \end{gathered}[/tex]
Percentage of blank cards sold
[tex]\begin{gathered} =\frac{56}{508} \\ =0.11 \end{gathered}[/tex]
Answer:
Hence, in percent probability of sold blank card is 11%.
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