The probability that Chloe acts hungry at 7pm given that she has already eaten dinner is 0.5. The probability that Chloe acts hungry at 7pm given that she has not had dinner is 0.99. Assume that there is probability 0.9 that Chloe has eaten dinner by 7pm on a given day. a) (1 pt) If Chloe is acting hungry at 7pm, find the probability that she has not had dinner yet. b) (1 pt) If Chloe is not acting hungry at 7pm, find the probability that she has already had dinner.

Answers

Answer 1

Answer:

a) P(  [tex]Y^{C}[/tex] | X ) = 0.180

b) P(Y | [tex]X^{C}[/tex]  ) = 0.998

Step-by-step explanation:

Let

P(X) - Probability that he acts hungry

P(Y) - Probability that he had ate dinner,

Given,

P(X | Y) = 0.5

P(X | [tex]Y^{C}[/tex]  ) = 0.99

P(Y) = 0.9

a.)

P(  [tex]Y^{C}[/tex] | X ) =  [tex]\frac{P( X | Y^{C} ). P(Y^{C} ) }{P( X | Y^{C} ). P(Y^{C} ) + P( X | Y ) . P (Y) }[/tex]

                  = [tex]\frac{(0.99)(0.1)}{(0.99)(0.1) + (0.5)(0.9)} = \frac{0.099}{0.549}[/tex] = 0.180

⇒P(  [tex]Y^{C}[/tex] | X ) = 0.180

b.)

P(Y | [tex]X^{C}[/tex]  ) = [tex]\frac{(1 - P(X | Y ) ) . P(Y)}{P( X^{C} ) } = \frac{(1 - P(X | Y ) ) . P(Y)}{ 1 - P( X ) }[/tex]

                 = [tex]\frac{(1 - 0.5)(0.9)}{1 - [(0.99)(0.1) + (0.5)(0.9) ]} = \frac{(0.5)(0.9)}{1 - [(0.099) + (0.45) ]} = \frac{0.45}{1 - [0.540]} = \frac{0.45}{0.451}[/tex] = 0.998

⇒P(Y | [tex]X^{C}[/tex]  ) = 0.998


Related Questions

Help ASAP! please and thank you have a great and blessed day!

Answers

Answer:

1.b

2.a

3.c

4.d

Step-by-step explanation:

Answer:

Step-by-step explanation:

Write an integer to show 300 feet above sea level

Answers

Answer:

[tex]300[/tex] or [tex]+300[/tex]

Step-by-step explanation:

Given

300 feet above sea level

Required

Represent as an integer

Sea level implies 0 ft.

So, when a distance (300) is above the sea level, it means that the position is:

[tex]Position = 0 + 300[/tex]

[tex]Position = 300[/tex]

Hence, the position is 300 or +300

Which expression shows an equivalent way to represent the total bill?

Answers

Answer:

(7+5.5)m + 5.5(2)

Step-by-step explanation:

Given:

Equation;

7m + 5.5(2+m)

Find:

Equivalent way

Computation:

7m + 5.5(2+m)

7m + 11 + 5.5 m

12.5m + 11

Or

(7+5.5)m + 5.5(2)

Please help me with this

Answers

Answer:

its B an D

Step-by-step expoin

stniop won

Answer:

The correct choices are: Both tables are relations because both display a set of ordered pairs, and table B is a function because each input has exactly one output.

Step-by-step explanation:

Both statements are true, both tables can be considered relations since all functions are relations, and because table A has proper inputs and outputs despite the fact of the same inputs resulting in different outputs. Table B can be considered a function because it has different inputs that each have an output, and there is no same input value that results in different outputs.

Find the perimeter of the figure.

Answers

The answer to the question is 96 feet. The perimeter is the total length around the whole shape. (18 feet on both sides, and 30 feet on both top and bottom)

what is 66.6% recurring as a fraction?

Answers

Answer:

Convert the decimal number to a fraction by placing the decimal number over a power of ten. Since there is  

1

number to the right of the decimal point, place the decimal number over  

10

1

 

(

10

)

. Next, add the whole number to the left of the decimal.

66

6

10

Reduce the fractional part of the mixed number.

66

3

5

Convert  

66

3

5

to an improper fraction.

333

5

Step-by-step explanation:


Among all pairs of numbers whose sum is 6, find a pair whose product is as large as possible.
What is the maximum product?

Answers

The pair of numbers is (3,3) while the maximum product is 9
Step-by-step explanation:
The pairs of numbers whose sum is 6 starting from zero is ;
0,6
1,5
2,4
3,3
Kindly note 2,4 is same as 4,2 , so there is no need for repetition
So the maximum product is 3 * 3 = 9 and the pair is 3,3

Answer:

The pair of numbers is (3,3) while the maximum product is 9

Step-by-step explanation:

The pairs of numbers whose sum is 6 starting from zero is ;

0,6

1,5

2,4

3,3

Kindly note 2,4 is same as 4,2 , so there is no need for repetition

So the maximum product is 3 * 3 = 9 and the pair is 3,3

Step-by-step explanation:

hope this helps :)

Find the value of x for which is r II s. Then find m<1 and m<2

•m<1 =(75-2x)
•m<2=(89-3x)

Answers

Answer:

1) 14

2) m<1=47°

3) m<2=47°

Step-by-step explanation:

1) 75-2x=89-3x

-2x+3x=89-75

x=14

2) m<1=75-2x

75-2(14)

75-28

47

3) m<2=89-3x

89-3(14)

89-42

47

Factor completely.

x^8 - 1/81

Please show a step-by-step/explanation on how you got your answer.

Answers

Answer: x(8) - /81

Step-by-step explanation:

Answer:

Step-by-step explanation:

As before any expression of the form (a^2-b^2) will always factor to (a-b)(a+b) in this case

x^8-1/81 = (x^4-1/9)(x^4+1/9) = (x^2-1/3)(x^2+1/3)(x^4+1/9) and if we completely factor it including square roots.[tex](x-\sqrt{1/3})(x+\sqrt{1/3})(x^2+1/3)(x^4+1/9)[/tex]

Please help me solve |3b+9| -16 = -52

Answers

Answer:

b= -15

Step-by-step explanation:

First combine like terms 9-16= -7

Left 3b-7= -52

Next add 7 to both sides

Left 3b= -45

Finally divide

So b= -15

In 2010, the population of a city was 224,000. From 2010 to 2015, the population grew by 6%. From 2015 to 2020, it fell by 4%. How much did the population grow from 2010 to 2015, to the nearest 100 people?

Answers

Answer:

people 2010:

224,000

people in 2015:

224,000(1+0.06) =237,440

people in 2020

237440(1-0.04) =227,942

The population increased between 2010 and 2015, with 4000 being the nearest 100 persons.

What is the percentage?

percentage, which is a relative figure used to denote hundredths of any quantity. Since one percent (symbolized as 1%) is equal to one-hundredth of something, 100 percent stands for everything, and 200 percent refers to twice the amount specified.

Given, In 2010, the population of the city was 224,000. From 2010 to 2015, the population grew by 6%. hence,

Population by 2015 = 224,000 * (1.06) = 2,37,440

Also given, From 2015 to 2020, it fell by 4%. Hence,

Population by 2020 = 237,440 * 0.96 = 227942

Thus, the population difference between 2010 and 2020 = 227942 - 224,000

the population difference between 2010 and 2020 = 3942

Therefore, the population growth from 2010 to 2015, to the nearest 100 people is 4000.

Learn more about percentages here:

https://brainly.com/question/29116686

#SPJ2

Determine which car gets the better gas mileage. *
Car
honda
toyota
distance
125
120
gallons
5
6

Answers

Answer:

honda

Step-by-step explanation:

David keeps records of his monthly earnings. Last month he worked 140 hours and earned $3700. This month he worked 120 hours and earned $3200.

Answers

Answer:

Step-by-step explanation:

Part A:

Rate of pay for David = [tex]\frac{\text{Change in earnings}}{\text{Change in hours worked}}[/tex]

                                            = [tex]\frac{3700-3200}{140-120}[/tex]

                                            = $25

Part B:

If he worked for number of hours = x

Then the function representing the earning will be,

f(x) = 25x + b

For an ordered pair (120, 3200),

3200 = 25(120) + b

b = 3200 - 3000

b = 200

Therefore, function will be,

f(x) = 25x + 200

Part C:

"Slope = 25" means the rate of change in earnings per hour is $25.

Similarly, y-intercept 'b = 200' will represent the fixed amount earned by David in addition to the per hour earnings.

I need help pls I need it for school thank uu

Answers

C is the answer for sure I think

find c and round. (geometry)

Answers

Answer:

4.24483 or 4.2

Step-by-step explanation:

An arithmetic sequence is described by the function f(n) = -3n + 7.
Determine the first five terms of this sequence

Answers

Answer:

the first five terms are: 4, 1, -2, -5, -8

Step-by-step explanation:

To find the first five terms, you simply input the numbers (1-5) into the equation.

[tex]-3(1)+7=4[/tex]  

[tex]-3(2)+7= 1[/tex]

[tex]-3(3)+7=-2[/tex]

[tex]-3(4)+7=-5[/tex]

[tex]-3(5)+7=-8[/tex]

plz mark me brainliest. :)

how many miles per hour does it take to go 160 miles in 4.5 hours

Answers

speed= 35.55556 miles per hour

Express 250 as the product of its prime factors.
Write the prime factors in ascending order.

Answers

answer is : 2 x 5 x 5 x 5

Answer:

2 x 5 x 5 x 5

= 2 x [tex]5^{3}[/tex]

maybe they want the answer in index notation



help pls I don’t get this

Answers

Answer:

x=136 degrees

Step-by-step explanation:

ok so basically the angles are the same because the line intersects both lines at the same degree.

Answer:

136°

Step-by-step explanation:

Since both line are equal in length and size and both straight then if on side is 136° then the other side must be 136°

1/5 ( 3x + 1/2 )
expand the following expression

Answers

Answer:

(1/5 * 3x) + (1/5 * 1/2)

Step-by-step explanation:

This * is multiply and this property is distribution

area and perimeter


9=


10=

Answers

Answer:

9). 15 miles

10). 12880.8 in²

Step-by-step explanation:

9). Total distance to be covered by Kelly = Perimeter of the given triangle

                                                                    = Sum of three sides of the triangle

    To know the length of Laurel drive (Hypotenuse of the triangle), we will apply Pythagoras theorem in the given triangle,

    (Hypotenuse)² = (Leg 1)² + (Leg 2)²

                             = (2.5)²+ 6²

                             = 6.25 + 36

     Hypotenuse = [tex]\sqrt{42.25}[/tex]

                           = 6.5 mi.

     Therefore, total distance covered by Kelly = 6.5 + 2.5 + 6

                                                                             = 15 mi.

10). Amount of paper required to cover one desk of the class

     = Area of the trapezoid shown in the figure

     = [tex]\frac{1}{2}(b_1+b_2)h[/tex]

      Here, [tex]b_1[/tex] and [tex]b_2[/tex] are the parallel sides of the trapezoid

      And 'h' is the distance between the parallel sides.

      By applying Pythagoras theorem in ΔPRT,

      PR² = RT² + PT²

      PT = [tex]\sqrt{PR^2-RT^2}[/tex]

      PT = [tex]\sqrt{(18)^2-2^2}[/tex]

            = [tex]\sqrt{324-4}[/tex]

            = [tex]\sqrt{320}[/tex]

            = 17.89 in.

      Area of the trapezoid PQRS = [tex]\frac{1}{2}(PQ+RS)(PT)[/tex]

                                                      = [tex]\frac{1}{2}(22+26)(17.89)[/tex]

                                                      = 429.36 in²

      Therefore, paper required to cover 30 desks = 30 × 429.36

                                                                                   = 12880.8 in²

In order to find out which graduates have the highest starting salaries, we gather information from graduates of ivy league, private, and public universities.

Answers

Give more information or is that all it gives your what’s the question

Find the measure of < FEG

Answers

B. 65 i think sooooo

Jose and his family went to dinner at olive garden the total bill was $55.31 Jose decided to leave a 15% tip how much of a tip did the waiter receive

Answers

Answer:

The answer would be that waiter will get $8.29.

Step-by-step explanation:

You would do 55.31 multiplyed by 0.15 to get the answer.

whats the figurative language in scars to your beautiful explain

YOU WILL GET BRAINLIEST

Answers

Answer:

Scars to Your Beautiful Analysis

Alessia Cara uses figurative language to emphasize that our differences are what makes us beautiful and we should embrace it. She personifies that the world has possibilities to change its opinions on people with differences by saying "the world could change it's heart".

Step-by-step explanation:

is this it?

In the number 240.149, how does the value of the 4 in the hundredths place compare to the value of the 4 in the tens place?

Drag and drop a fraction into the box to correctly complete the statement.
The value of the 4 in the hundredths place is Response area the value of the 4 in the tens place.
1/10 1/100 1/1000

Answers

Answer:

1/100

Step-by-step explanation:

Answer: its 1/1,000

Step-by-step explanation:

which of the following tables shows a proportional relationship between x and y

Answers

Answer:

B.

Step-by-step explanation:

B is the answer,Good luck!

Write equivalent fraction with the given denominator.

Answers

Answer:

20/10

Step-by-step explanation:

2x10=20

Answer:

2 = 20/10

Step-by-step explanation:

The problem wants you to write a fraction that is equalavent to 2, but that has 10 as the denominator.  I chose 20, because 2 x 10 = 20.  

Y = -1/8x -10 linear or nonlinear

Answers

Answer:

Linear

Step-by-step explanation:

The equation is in y intercept form.

what is 2x + 5 (y-1) when x=8 and y=5

Answers

Step-by-step explanation:

2x + 5 (y-1)

16+20

=36

hope it helps you

36
just replace the variables and then subtract then multiply
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