Ask question

Ask question

All categories

4 years ago

12

LAST ONE PLEASE HELPPPP TIMEDD FIND P(Q/R)

1 answer:

vazorg [7]4 years ago

5 0

Answer: choice B) 3/7

------------------------------------------------

Explanation:

There are 8+3+4+22 = 37 items total.

Using the conditional probability formula, we can say
P(Q|R) = [P(Q and R)]/P(R)
P(Q|R) = (3/37)/(7/37)
P(Q|R) = (3/37)*(37/7)
P(Q|R) = 3/7

Put another way, we know that event R has happened. We know that the value is drawn out of circle R. So we have 7 possible outcomes. Of those 7, three of them are in both Q and R. So that's another viewpoint of why the answer is 3/7.

You might be interested in

What is the slop of the line 2x - 5y=9

Nitella [24]

The slope is 2The slope is 2The slope is 2The slope is 2The slope is 2The slope is 2

3 0

2 years ago

Read 2 more answers

Yuri thinks that 3/4 is a root of the following function.

sineoko [7]

Given:

The polynomial function is

$q(x)=6x^3+19x^2-15x-28$

Yuri thinks that $\dfrac{3}{4}$ is a root of the given function.

To find:

Why $\dfrac{3}{4}$ cannot be a root?

Solution:

We have,

$q(x)=6x^3+19x^2-15x-28$

If $\dfrac{3}{4}$ is a root, then the value of the function at $\dfrac{3}{4}$ is 0.

Putting $x=\dfrac{3}{4}$ in the given function, we get

$q(\dfrac{3}{4})=6(\dfrac{3}{4})^3+19(\dfrac{3}{4})^2-15(\dfrac{3}{4})-28$

$q(\dfrac{3}{4})=6(\dfrac{27}{64})+19(\dfrac{9}{16})-\dfrac{45}{4}-28$

$q(\dfrac{3}{4})=3(\dfrac{27}{32})+\dfrac{171}{16}-\dfrac{45}{4}-28$

$q(\dfrac{3}{4})=\dfrac{81}{32}+\dfrac{171}{16}-\dfrac{45}{4}-28$

Taking LCM, we get

$q(\dfrac{3}{4})=\dfrac{81+342-360-896}{32}$

$q(\dfrac{3}{4})=\dfrac{-833}{32}\neq 0$

Since the value of the function at $\dfrac{3}{4}$ is not equal to 0, therefore, $\dfrac{3}{4}$ is not a root of the given function.

4 0

3 years ago

If you know that f(x) + g(x) =

UkoKoshka [18]

Answer:

2(1) and 2(1)

Step-by-step explanation:

x=1

F=2

g=2

5 0

3 years ago

How can you use the structure of a two way frequency table to complete it

katovenus [111]

Send more information

4 0

3 years ago

9. SHOW FULL STEPS. Solve for f(-4) and f(7) of the function below<br>f(x)=7-2x-3x²

qwelly [4]

Answer:

f(-4) = 33

f(7) = -154

Step-by-step explanation:

In this question, you will solve the function by plugging in the given value.

Solve:

f(-4) = 7 - 2(-4) -3(-4)²

= 7 - 2(-4) - 48

= 7 + 8 - 48

= 7 - 40

f(-4) = 33

----------------------------------

f(7) = 7 - 2(7) -3(7)²

= 7 - 2(7) - 147

= 7 - 14 - 147

= 7 - 161

f(7) = -154

8 0

3 years ago