Mathematics College

Students majoring in psychology surveyed 200 of their fellow students about their dreams. The results of the survey are shown in the Venn diagram. Let B be the event that the participant dreams in black and white and let C be the event that the participant dreams in color.

What is the probability that a randomly selected participant dreams in black and white or color?

Students Majoring In Psychology Surveyed 200 Of Their Fellow Students About Their Dreams. The Results

Answers

Answer 1

Answer:

0.13

Step-by-step explanation:

4/200=0.02     12/200=0.06   10/200=0.05

0/02+0.06+0.05=0.13

Answer 2

The probability that a randomly selected participant dreams in black and white or color is 0.13.

What is probability ?

"Probability means possibility. It is a branch of mathematics that deals with the occurrence of a random event. The value is expressed from zero to one. Probability has been introduced in Math to predict how likely events are to happen. The meaning of probability is basically the extent to which something is likely to happen. This is the basic probability theory, which is also used in the probability distribution, where you will learn the possibility of outcomes for a random experiment. "

Probability of all black = 4/200=0.02

Probability of all white = 12/200=0.06

Probability of all other color = 10/200=0.05

So, probability that a randomly selected participant dreams in black and white or color =0.02+0.06+0.05=0.13

Hence, the probability that a randomly selected participant dreams in black and white or color = 0.13

To know more about probability here

https://brainly.com/question/11234923

#SPJ3

Related Questions

If the roots of the equation
lx²+nx+n=o is in the ratio p:q
then
√(p/q) + √(q/p)=?​

Answers

Step-by-step explanation:

Let the given ratio be pk : qk .

So , here the quadratic equation is lx² + nx + n = 0. With respect to Standard form ax² + bx + c = 0.

We have ,

a = lb = nc = n

→ Sum of roots = -b/a = -n/l = qk + pk

→ Product of roots = c/a = n/l = k²pq .

[tex]=> \dfrac{n}{l} = \dfrac{k^2}{pq} \\\\=> k^2 =\dfrac{n}{pql} [/tex]

And here pk and qk is a root of the quadratic equation ,

[tex]=> lx^2 + nx + n = 0 \\\\=> l(pk)^2 + n(pk) + n = 0\\\\=> lp^2k^2+npk + n = 0 \\\\=> lp^2\bigg( \dfrac{n}{pql} \bigg) + np\bigg(\sqrt{\dfrac{n}{pql}} \bigg) + n = 0 \\\\ => n\bigg\{\dfrac{p}{q}+\sqrt{\dfrac{np}{lq}}+1\bigg\} = 0 \\\\=> \dfrac{p}{q}+\sqrt{\dfrac{np}{lq}}+1 =0\\\\=>\sqrt{\dfrac{p}{q}} \bigg( \dfrac{q}{p}+\sqrt{\dfrac{np}{lq}}+1\bigg) = 0 \\\\=> \sqrt{\dfrac{p}{q}}+ \sqrt{\dfrac{q}{p}}+ \sqrt{\dfrac{n}{l}}=0 \\\\\boxed{\red{\bf\longmapsto \sqrt{\dfrac{p}{q}}+ \sqrt{\dfrac{q}{p}} = - \sqrt{\dfrac{n}{l}}}} [/tex]

in 1990 the estimated population of pittsburgh, pennsylvania, was 369,879. in 2000 the estimated population was 334,563. find the percent of decrease from the nearest whole percent from 1990 to 2000.

Answers

Answer:

9.55%

Step-by-step explanation:

1990 = 3,69,879   2000 = 3,34,563

%Decrease = Old Value - New Value/Old Value ×100%

%Decrease = 3,69,879 - 3,34,563/369879 ×100%

%decrease = 35316/369879 × 100%

%Decrease = 9.548%

%Decrease = 9.55%(Answer)

write in point-slope form an equation of the line that passes through the given point and has the given slope: (5,11); m = 4/5.

a. y -5 = 4/5(x -11)
b. y -11 = 4/5(x -5)
c. y + 11= 4/5(x + 11)
d. y + 11= 4/5(x + 5)​

Answers

Answer:

b. y -11 = 4/5(x -5)

Step-by-step explanation:

Today only, a sofa is being sold at a 34% discount. The sale price is $231. What was the price yesterday?

Answers

Answer:

$309

Step-by-step explanation:

A satellite flies 118404 miles in 15.18 hours. How long would it take to fly 174798 miles?

Answers

Answer:

22.41 hours

Step-by-step explanation:

Set up a proportion where x is the time to fly 174798 miles

[tex]\frac{118404}{15.18}[/tex] = [tex]\frac{174798}{x}[/tex]

Cross multiply and solve for x:

118404x = 2653433.64

x = 22.41

So, it would take 22.41 hours to fly 174798 miles

Which set of values will make the following inequality TRUE?
2n + 6 < -12

Answers

Answer:

n < -9

Step-by-step explanation:

Answer:

n < -9

Step-by-step explanation:

2n +6 < - 12

2n < -18

n < -9

3/4(8x^2+1)3x^2+1/4

Answers

Answer:

Please look at the attached image to see the answer.

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Answers

Answer:

the answer is a

Step-by-step explanation:

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Answers

Answer:

hundred thousands and millions

Please help me answer

Answers

Answer:

No

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Step-by-step explanation:

The midpoint of AB is M(4, -2). One endpoint is A(-2, 6). What is the other endpoint for B?

Answers

Answer:

endpoint for B is (10,-2)

Step-by-step explanation:

M={(x1+x2)/2,(y1+y2)/2}

(4,2)={-2+x2/2,6+y2/2)

By equating the x coordinates

4=-2+x2/2

8=-2+x2

8+2=x2

x2=10

By equating the y coordinates

2=6+y2/2

4=6+y2

4-6=y2

y2=-2

Therefore the endpoint for B is (10,-2)

The measure of ZJLM is 140°. The measure of ZJKL is 75°.
What is the measure of ZKJL?
Enter your answer in the box,
mZKJL =

Answers

Answer:

65°

Step-by-step explanation:

m∠KJL = 65°

A. √5/3
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C. 3√5/5
D. 2√14

Help Plz

Answers

Answer:

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Step-by-step explanation:

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Maria can deliver 24 papers in 1/4 hour. At that rate, how many papers can she deliver in 1 hour?

Answers

Answer:

96

Step-by-step explanation:

24*4=96

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Answers

I believe the answer is 6

9514 1404 393

Answer:

  x = 6

Step-by-step explanation:

The two angles are marked as being equal, so the line down the middle of the triangle is an angle bisector. An angle bisector divides the sides of the triangle proportionally, so you can write the proportion ...

  x/12 = 5/10

  x = 12(5/10) . . . . multiply by 12

  x = 6

5. The cone shown below has a slant height of 15 centimeters and a height of 12
centimeters.
15 cm
12 cm
What is the volume of the cone?
Round your answer to the nearest tenth. Do not include the cm3.
1017.9

Answers

Answer:

the answer is A

Step-by-step explanation:

a
26
70º y 11c
2d
5e
7f
110°​

Answers

Answer:

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Step-by-step explanation:

this kind o questions

y = 2x + 3
y = -3x + 3

Answers

Answer:

y = -1

Step-by-step explanation:

hopefully it helped

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​

Answers

Answer:

I suppose it has 4 digits.

Step-by-step explanation:

The fractional equivalent of the repeating decimal would be 15/99.

4 repeating digits I hope this helped you

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Answers

Answer:

81 Invitations, 27 times 3 = 81

Step-by-step explanation:

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Answers

I will write the answers from left to right.

-24/5

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-4

-4/5

-2

-2/5

-2 2/5

If you want me to explain any, ask. Have a good day.

Answer:

Step-by-step explanation:

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Answers

Answer:

Tell me if im wrong but i think it is $2.6 for a burger. Im might be wrong though

Step-by-step explanation:

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Answers

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Answers

Answer:

-1

Step-by-step explanation:

Whoever answers this question correctly will get a 5.0 rating, thanks, and a brainlyist.
The question is on the screenshot.

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Answers

Answer:

i know this isnt suppose to be here or any of that but this needs to be stop any where...ok now that i have your attention everyone needs to know this people all over the world are burning bibles LETS STOP THIS because that is so disrepecful that people are doing that to the bible and thats hurting jesus and gods heart LETS STOP THIS BURNING BIBLE STUFF pls copy and paste this and share the word so we can stop this.

Step-by-step explanation:

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Answers

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Jackie earned $80 for working 5 hours. If she continues to work at the same rate, how much money will she earn if she works 7 hours?

Answers

Answer:

112

Step-by-step explanation:

80/5 = 16

16 each hour

16 ( 7 )

= 112

Hope this helps dude


Find the value of x in the figure below.
(8x + 5)°
(13x – 14)°

Answers

Answer:

x = 9

Step-by-step explanation:

The question is shown in the attached figure.

We can see that, (8x + 5)°  and (13x – 14)° forms a linear pair. It would mean that,

(8x + 5)° + (13x – 14)° = 180°

21x-9 = 180°

21x = 180° + 9

21x = 189

x = 9

Hence, the value of x is 9.

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Answers

Answer:

1 and 2 ?

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Answers

Answer:

77°

Step-by-step explanation:

there's a rule, look it up

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