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joja [24]
3 years ago
13

A and B are two events.

Mathematics
2 answers:
Vesna [10]3 years ago
5 0
In order to determine if the events are independent or not we need to find the conditional probabilities.

The conditional probability of event A, given event B is denoted as P(A|B)

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

P(A*B) indicates P(A and B)

Using the values, we get:

P(A|B)= \frac{0.28}{0.8}=0.35

Since P(A|B) is not equal to P(A) this indicates that occurrence of event B has an impact on the occurrence of event A. This shows that the two events are dependent.

Therefore, the correct option is the second one.
2. A and B are not independent events because P(A∣∣B)≠P(A)
labwork [276]3 years ago
5 0

Answer:

Therefore, the correct option is the second one.

2. A and B are not independent events because P(A∣∣B)≠P(A)

Step-by-step explanation:

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Write an expression where you multiply a decimal number by 100. In a complete sentence, describe which direction and how many pl
Tatiana [17]

If you are multiplying by 100, the decimal will move 2 places to the right.

It moves to the right when multiplying because the number is getting greater, and there are 2 zeroes in 100 so it moves twice.

6 0
3 years ago
PLEASE HELP A GIRL OUT!!! What is the best estimate for the value of the expression?
Ivenika [448]

Answer: -2(1/2)

Step-by-step explanation:

I CAN HELP A GIRL OUT!

anyways...

calculate the difference first.

(-13/12) - 14/9

then, rewrite the expression.

-13/12 - 14/9

the solution is -95/36.

when it's converted to decimal form, it turns into -2.638. so, our BEST estimate for the value of the expression is -2(1/2)       (the second option)

5 0
2 years ago
3t/2+4t/3 I need help I suck at math
Mice21 [21]

Answer:

17 /6 t

Step-by-step explanation:

3t2+4t3

=32t+43t

Combine Like Terms:

=32t+43t

=(32t+43t)

=176t

5 0
3 years ago
Read 2 more answers
HELP ME PLS I NEED THIS NOW
Lyrx [107]

r = radius

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4 0
3 years ago
Mr. Smith estimates that
OLEGan [10]

Answer:

B. 7.5 hours

Step-by-step explanation:

Assuming that both hoses fill at the same rate, then by simple proportion,

To raise the pool by 1 foot of water:

1 hose ---> takes 3 hours

2 hoses ----> fills twice as fast ---> will take half the time ---> 3/2 = 1.5 hrs

Hence with 2 hoses, it will take 1.5 hours to fill 1 foot of water.

to fill 5 feet of water, we will need 1.5 hours x 5 feet = 7.5 hours

5 0
3 years ago
Read 2 more answers
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