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fgiga [73]
3 years ago
10

A and B are two events.

Mathematics
1 answer:
svlad2 [7]3 years ago
5 0

Answer:

A and B are not independent events because P(A|B)≠P(A)

is the correct answer.

Step-by-step explanation:

If A and B are independent then we must have

P(AB) = P(A) P(B) and also

P(A/B) = P(A)

We are given that

A and B are two events.

Let P(A)=0.5 , P(B)=0.25 , and P(A and B)=0.15 .

P(A/B) = P(AB)/P(B) = 0.15/0.5 = 0.3

i.e. P(A/B) is not equal P(A)

Similarly P(B/A) = P(AB)/P(A) = 0.15/0.25 = 0.6 not equal to P(B)

Hence A and B are not independent.


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A class is organizing a going away party for one of their students. They spend $26.38 on decorations, $78.92 on food, and $34.50
Serjik [45]

Answer:

$9.35

Step-by-step explanation:

Simply start by adding up the total cost of each item.

$26.38 + $78.92 + $34.50

= $140.25

The total is $140.25

If 15 students want to split the cost, you’ll need to divide it by 15.

$140.25 divided by 15 = $9.35

So the total for each student is $9.35

8 0
3 years ago
Math question please help if you get this right I will mark you as a brainliest
zhenek [66]

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5 0
3 years ago
1
ZanzabumX [31]

Answer:

To create function h, function f was translated 2 units right , translated 4 units up and reflected across the x axis

Step-by-step explanation:

Given

f(x) = x^3

h(x) =-(x + 2)^3 - 4

Required

Complete chart

First: f(x) was translated right by 2 units

The rule of right translation is (x,y) \to (x + 2,y)

So, we have:

f'(x) = f(x + 2)

f'(x) = (x + 2)^3

Next: f'(x) was translated up by 4 units

The rule of down translation is (x,y) \to (x,y+4)

So, we have:

f"(x) = f'(x) +4

f"(x) = (x + 2)^3 +4

Lastly, f"(x) was reflected across the x-axis;

The rule of this reflection is: (x,y) \to (x,-y)

So, we have:

h(x) = -f"(x)

h(x) = -[(x+2)^3 + 4]

Remove bracket

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8 0
2 years ago
Which property is used in the problem below? 2(x+4)=2x+8 the associative property the commutative property the distributive prop
Serga [27]
The answer is C) The Distributive property.
2(x+4) got turned into 2x+8.

The distributive property does this:
2 times x plus 2 times 4.

2 times x = 2x
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So the answer is 2x+8.

C) Distributive property is right.
6 0
3 years ago
Read 2 more answers
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Kruka [31]

Answer:

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Step-by-step explanation:

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2 years ago
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