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-BARSIC- [3]
3 years ago
10

A pond contains two kinds of fish, trout and bass, of which 20% are bass and 80% are trout. If you catch 5 fish at random from t

his pond, which would you expect
to catch?

a. 0 bass and 5 trout
b. 1 bass and 4 trout
c. 4 bass and 1 trout
d. 5 bass and 0 trout
Mathematics
2 answers:
melomori [17]3 years ago
4 0

B

You would catch more trout because of the percentage but you will most likely catch at least 1 bass.

Rama09 [41]3 years ago
3 0

Answer:

B

1:4

Step-by-step explanation:

If it 20%:80% that means its 1:4 because 20% of five is 1 and 80% of five is 4

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Answer:

-24+12(d-3)+22=-24+34(d-3)

10(d-3)

10d=-30

d=-30/10

d=3

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Tyrice puts 4 cookies in each of 7 bags how many cookies did he put in each bag ?
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Julia enjoys shooting paper balls into the wastebasket across her office. She misses the first shot 50% of the time. When she mi
Marianna [84]

Answer:

a) Probability that Julia misses two shots in a row = \frac{1}{2}\frac{1}{5} =\frac{1}{10}

b) We can use the complement rule on this case. Let X the number of shoots successful, we want this probability:

P(X \geq 1)

And using the complement rule we have this:

P(X \geq 1) = 1-P(X

And P(X=0) correspond to the probability that Julia misses two shots in a row founded on part A so then we have:

P(X\geq 1) = 1- \frac{1}{10}= \frac{9}{10}

Step-by-step explanation:

Part a

For this case we know that Julia enjoys shooting paper balls into the basket across her office.

She misses the first shot 50% of the time.

Probability that Julia misses the first shot = \frac{1}{2}

When she misses on the first shot, she misses the second shot 20% of the time.

Probability that Julia misses the second shot = \frac{1}{5}

For this case we need to find the probability of missing two shots in a row

So we can multiple the two probabilities like this

Probability that Julia misses two shots in a row = \frac{1}{2}\frac{1}{5} =\frac{1}{10}

Part b

For this case we want probability of making at least one successful throw

And we can use the complement rule on this case. Let X the number of shoots successful, we want this probability:

P(X \geq 1)

And using the complement rule we have this:

P(X \geq 1) = 1-P(X

And P(X=0) correspond to the probability that Julia misses two shots in a row founded on part A so then we have:

P(X\geq 1) = 1- \frac{1}{10}= \frac{9}{10}

6 0
3 years ago
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