In a fish tank, there are 15 goldfish, 6 angelfish, and 18 guppies. If a fish is

Question

In a fish tank, there are 15 goldfish, 6 angelfish, and 18 guppies. If a fish is selected at random, find the probability that it is an angelfish or a guppy. 7/13 5/13 11/13 8/13 Let E be the event that a corn crop has an infestation of car worms, and let B be the event that a corn crop has an infestation of corn borers. Suppose that P(E) = 0.24, P(B) = 0.16, and P(E and B) = 0.13. Find the probability that a corn crop has either an car worm infestation, a corn borer infestation, or both. 0.6 0.53 0.27 0.13 On a certain day, a cheese packaging facility packaged 500 units of mozzarella choose. Some of these packages had major flaws, some had minor flaws, and some had both major and not flaws. The following table presents the results. Find the probability that randomly chosen choose package has no major flaw. 0.822 0.91 0.79 0.21 An apartment building has the following distribution of apartments: If an apartment is selected at random, what is the probability that it is not a 2 bedroom apartment on the 2nd floor? 13/17 4/9 11/13 4/13

Explanation / Answer

Q2.
P(E) = 0.24
P(B) = 0.16
P(E and B) = 0.13

=> P( E OR B) = P(E) + P(B) - P(E and B)= 0.24 + 0.16 - 0.13 = 0.27

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