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gizmo_the_mogwai [7]
3 years ago
9

Q and r are not mutually exclusive events. if p(q) = 0.12, p(r) = 0.25, and p(q and r) = 0.03, find p(q or r).

Mathematics
2 answers:
Andrews [41]3 years ago
7 0

So we are given the probabilities of q and r:

p (q) = 0.12

p (r) = 0.25

p (q and r) = 0.03

 

Actually to find for p (q or r), this simply means to add all the values of p (q). p (r) and p (q and r). If we are to draw a bubble diagram, the p (q and r) is the bubble intersection p (q) and p (r). We know that the word “OR” takes up all in the bubble diagram. Therefore:

p (q or r) = p (q) + p (r) + p (q and r)

 

Substituting the given values into the equation:

p (q or r) = 0.12 + 0.25 + 0.03

<span>p (q or r) = 0.40</span>

Radda [10]3 years ago
4 0

Answer:

0.34

Step-by-step explanation:

The probability of A or B occurring if they are not mutually exclusive is given by

P(A)+P(B)-P(A and B)

In this case, we have

P(q)+P(r)-P(q and r)

= 0.12+0.25-0.03 = 0.34

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Katyanochek1 [597]
Cuz she divided 23 and 8 and got 21 then she added 3+3= 6 + 4= 10
5 0
2 years ago
I need helppppp........
grin007 [14]

Answer:

B

Step-by-step explanation:

To do this, you need to complete the square.

y=-2x^2-8x-13 \\\\y=-2(x^2+4x)-13 \\\\y=-2(x^2+4x+4)+8-13 \\\\y=-2(x+2)^2-5

Therefore, the correct answer is choice B. Hope this helps!

7 0
3 years ago
Please give me the answers to all three I will mark u brilliant
elixir [45]

Answer:

First know the formula for the area of a circle;

<h2>A = πr^{2}</h2>

Where 'π' represents pi(3.14 or 22/7), and 'r' stands for the radius being squared.

For the first problem, we can see that 12 is our <u>diameter</u>.

And to find the radius, we need to find 1/2 of the diameter (half of the diameter), so;

D/2 = R

Replace with actual values;

12/2 = 6, <u>6</u> is our <u>radius</u>.

Now we plug this into our formula:

A = πr^{2}

A = 3.14(6^2)

A = 3.14(36)

A = <u>113.04 centimetres</u> is the area of the circle.

For the second problem, we can see that 18 is our <u>diameter</u>.

And to convert the diameter into the radius, we do what we did to the past problem, find 1/2 of the diameter.

So;

D/2 = R

18/2 = 9, <u>9</u> is our <u>radius</u>.

Now we plug this into our formula:

A = πr^{2}

A = 3.14(9^2)

A = 3.14(81)

A = <u>254.34 inches</u> is the area for this circle.

For the third problem, we can see that our radius is already given, 5.

So now we just simply and easily plug this into our formula;

A = πr^{2}

A = 3.14(5^2)

A = 3.14(25)

A = <u>78.5 meters</u> is the area for this circle.

4 0
1 year ago
Find the slope for (3,0) and (4,1)
Delvig [45]

Answer:

The slope is 1

Step-by-step explanation:

the formula for finding slope is : y2-y1/x2-x1

2. Subsitute: (1)-(0)/(4)-(3) = 1/1 = 1

Therefore, the slope is 1.

8 0
2 years ago
1)
irina1246 [14]

Answer:

d. 9

Step-by-step explanation:

i friken used all my attempts guessing on this and got it wrong all times so 9 is the last answer

3 0
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