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A bass guitarist worked on 99 music projects

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Question

A bass guitarist worked on 99 music projects

last year. He wrote and produced 33 projects. He wrote a total of 55 projects. He produced a total of 77 projects. Use a Venn diagram to determine​ (a) how many projects he wrote but did not​ produce, and​ (b) how many projects he produced but did not write

 
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67 students in a classical music lecture class

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Question

67 students in a classical music lecture class

were​ polled, with the results that 38

38 like Wolfgang Amadeus​ Mozart, 39

39 like Ludwig von​ Beethoven, 33

33 like Franz Joseph​ Haydn, 15

15 like Mozart and​ Beethoven, 22

22 like Mozart and​ Haydn, 16

16 like Beethoven and​ Haydn, and 9

9 like all three composers. Use a Venn diagram to complete parts​ (a) through​ (f) below.

 
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A certain brand of automobile tires have a life span of 35,000 miles

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Question

A certain brand of automobile tires have a life span of 35,000 miles and a standard deviation 2,300 miles (assume

tires have a bell-shape distribution)

A) the life span of 3 randomly selected tires are 33,000 miles, 37,000 miles, and 32,000 miles. Find the z-score that correspond to each life span. Round the nearest hundredth as needed.

According to the z-score would the life span of these be considered unusual?

 
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probability

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Question

The probability that a person in the United States has type  style=”color:rgb(0,0,0);background-color:transparent;”>B​+ blood is 13
13​%. Three
Three unrelated people in the United States are selected at random. Complete parts​ (a) through​ (d)

 
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