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tangare [24]
3 years ago
9

HELP PLZZZZ

Mathematics
1 answer:
JulijaS [17]3 years ago
8 0

Answer:

D(3,0) is correct answer

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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
11. 1Owl0 – 19w" + 6W8
Gennadij [26K]
I’m so confused what are u trying to ask
5 0
2 years ago
What is the value of x?
RSB [31]

An exterior angle equals the sum of the remote interior angles .

So


x + 60 = 95

x = 95 - 60

x = 35


Answer

B. 35

7 0
3 years ago
Read 2 more answers
There are 24 boys and 16 grils on a playground. What is the ratio of boys tototal number of children on the playground
tatuchka [14]

Answer:

24:40 or 3:5

Step-by-step explanation:

Boys: 24

All children: 24 + 16 = 40

Boys to total amount of children: 24:40

Simplify: 24:40 = 3:5

8 0
2 years ago
The atmospheric pressure on an object decreases as altitude increases. If a is the height (in km) above sea level, then the pres
seraphim [82]

Answer:

373.8mmHg

Step-by-step explanation:

a =height (in km) above sea level,

the pressure P(a) (in mmHg) is approximated given as

P(a) = 760e–0.13a .

To determine the atmospheric pressure at 5.458 km, then we will input into the equation

P(5.458km) = 760e–0.13a .

= 760e^(-0.13×5.458)

=760e^-(0.70954)

= 760×0.4919

=373.8mmHg

Therefore, the atmospheric pressure at 5.458 km is 373.8mmHg

3 0
2 years ago
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