P(Al hits bottle first time) = 1/3
P(Al misses the first shot but hits on his second shot) =
P( Al misses and bill misses and Al hits) = 2/3 * 3/4 * 1/3 = 1/6
So required probability = 1/3 + 1/6 = 1/2
Using proportions, it is found that Mrs. Wood should expect 1,898 books out of the 36,500 to have major damage.
<h3>What is a proportion?</h3>
A proportion is a fraction of a total amount, and the measures are related using a rule of three.
For this problem, the proportion of books with major damage is:
43/(716 + 68 + 43) = 0.051995.
Hence, out of 36,500 books, the expected amount of books with major damage is:
0.051995 x 36,500 = 1898.
More can be learned about proportions at brainly.com/question/24372153
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Answer:
30 degrees
Step-by-step explanation:
tanA=4√3/12
A=30
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