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2 years ago

Can someone help me solve this?

Mathematics

1 answer:

Sladkaya [172]2 years ago

6 0

Step-by-step explanation:

yan po ang sagot ko dahil yan po ang pagkakaintindi ko

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If A, B, and C are mutually exclusive events with P(A) = 0.2, P(B) = 0.3, and P(C) = 0.4, determine the following probabilities:

fiasKO [112]

a. The events are mutually exclusive, so

$P(A\cup B\cup C)=P(A)+P(B)+P(C)=\boxed{0.9}$

b. For the same reason,

$P(A\cap B\cap C)=\boxed0$

Another way to see this is to use the result from part (a), and the inclusion/exclusion principle:

$P(A\cap B\cap C)=P(A)+P(B)+P(C)-P(A\cup B\cup C)$

and the right side reduces to 0.

c. Same as (b),

$P(A\cap B)=\boxed0$

d. Same as (b),

$P((A\cup B)\cap C)=\boxed0$

We can also use the distributivity rule for unions and intersections to write

$P((A\cup B)\cap C)=P((A\cap C)\cup(B\cap C))=P(A\cap C)+P(B\cap C)=0$

e. If the $A'$ is the complement of $A$ , then by DeMorgan's law,

$P(A'\cap B'\cap C')=P(A\cup B\cup C)'=1-P(A\cup B\cup C)=\boxed{0.1}$

4 0

3 years ago

Please help I don’t understand

Olegator [25]

Answer:

They are not similar.

Step-by-step explanation:

To find whether or not they are similar, set them up as a proportion.

(2.4/5.2) = (8/13)

Now cross multiply.

2.4*13 = 5.2*8

31.2 = 41.6

Since they are not exact, they are not similar.

8 0

3 years ago

What is the percent of decrease from 2,000 to 1,000?

IgorLugansk [536]

Answer:

50%

Step-by-step explanation:

2,000 is 2 x more than 1,000. Or, 1,000 is half of 2,000 and half of 100%=50%.

7 0

3 years ago

Find the greatest common factor of these three expressions.<br> 18x^2, 42x^4, and 30x^5

otez555 [7]

Answer:

I wasn't 100% sure what you were asking, but

3 0

3 years ago

I NEED HELP I WILL MARK IT BRAINLY

lana66690 [7]

Answer:

W=2/(P-2L)

Step-by-step explanation:

4 0

3 years ago