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sveta [45]
3 years ago
8

In choosing a vacation spot you narrow down your choice to two states each of which has 12 counties and each county has 15 citie

s how many different cities is it possible for you to visit
Mathematics
1 answer:
PolarNik [594]3 years ago
4 0
2states(12counties/state)(15cities/county)=360 cities
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This is what I got sorry if it’s incorrect I tried..

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2 years ago
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A commuter crosses one of three bridges, A, B, or C, to go home from work. The commuter crosses bridge A with probability 1/3, c
mihalych1998 [28]

Answer:

0.1333 = 13.33% probability that bridge B was used.

Step-by-step explanation:

Conditional Probability

We use the conditional probability formula to solve this question. It is

P(B|A) = \frac{P(A \cap B)}{P(A)}

In which

P(B|A) is the probability of event B happening, given that A happened.

P(A \cap B) is the probability of both A and B happening.

P(A) is the probability of A happening.

In this question:

Event A: Arrives home by 6 pm

Event B: Bridge B used.

Probability of arriving home by 6 pm:

75% of 1/3(Bridge A)

60% of 1/6(Bridge B)

80% of 1/2(Bridge C)

So

P(A) = 0.75*\frac{1}{3} + 0.6*\frac{1}{6} + 0.8*\frac{1}{2} = 0.75

Probability of arriving home by 6 pm using Bridge B:

60% of 1/6. So

P(A \cap B) = 0.6*\frac{1}{6} = 0.1

Find the probability that bridge B was used.

P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.1}{0.75} = 0.1333

0.1333 = 13.33% probability that bridge B was used.

8 0
3 years ago
I need help with this math isn't my strong suit
aev [14]

Hope This Helps. Have a good day.

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3 years ago
Sheila has a bag of 40 marbles. 10 of them are blue, 12 of them are green and the rest of them are red. What is the probability
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Answer:

18

Step-by-step explanation:

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2 years ago
Please help domain/range and eqation
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Domain: (infinity, 4]
range: [-6, infinity)
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2 years ago
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