The probability that a randomly selected person at a show has seen the band play live before is 30%. A "superfan" is defined as someone who has seen the band play live at least 10 times. The probability that a person at a show is a "superfan" is 20%. Two people are selected at random. What is the probability that both people have both seen the band perform live before, and are superfans?

Answers

Answer 1

Answer:

0.09 and 0.04

Step-by-step explanation:

The probability that a randomly-selected person at a show has seen the band play live before is 30%=0.30

The probability that a person at a show is a "superfan" is 20%=0.20

Two people are selected at random.

The probability that both people have both seen the band perform live before  = The probability that the first person has seen the band live before and the second person also has seen the band live before.

=0.30 x 0.30

=0.09

Similarly, the probability that both are  "superfans"   = The probability that the first person is a superfan and the probability that the second person is a superfan.

=0.20 x 0.20

=0.04

Hence, the probability that both people have both seen the band perform live before, and are "superfans" are 0.09 and 0.04 respectively.


Related Questions

HELPPPPPPPPP MEEEE ASAPPPPPPPP

Answers

Answer:

Quest 5. No, 2^4 = 16, 2.4 =2 x 4 = 8.

Quest 6. let No. of cells = Nc, let No. of Hours = Nh.

then Nc = (6hrs x 2cells)/1hr = 12 cells.

if 1,024 cells, then

Nh = (1hrs x 1,024cells)/2hrs = 512 hrs.

Quest 7. No, cos 10^7 is only 10,000,000, so 39 & 10 million are not any way equal.

Quest 8. 1 = 1^3, 8 = 2^3, 27 = 3^3, 1 = 1^3, 64 = 4^3, 125 = 5^3,

Quest 9. 2^8 = 2 x 2 x 2 x 2 x 16 = 256, this cos 256 is a product of 8, 2s & there are 4, 2s in 16.

so altogether its all 8, 2s.

anyone who can help?
I’ll give you the 35 points.

Answers

Answer: sqrt[9^2 + {1.85*9.00/0.60}^2] m = 29.0 m

5 + x - 14 = -15. Solve for X

Answers

Answer:

x=-6

Step-by-step explanation:

x+-9=-15

x+9=15

x=15-9

x=6

Answer:

x= -6

Step-by-step explanation:

5+x-14=-15

x-14=-20

x=-6

20. Eight people decide to evenly split the number of Snicker's
bars in the value bag. After they split, they had 9 Snicker's
bars a piece. Write and solve an equation to find the number
of Snicker bar's in the bag.

Answers

Answer:

72

Step-by-step explanation:

9x8=72

check your answer by 72 divided by 9.

72 Snickers a person

9x8=72

Convert 9340 m to km

Answers

Answer:

9.34 km

Step-by-step explanation:

m to km = m ÷ 10009340 ÷ 1000 = 9.34

I hope this helps!

Answer:

[tex]9. 34[/tex]

Step-by-step explanation:

[tex]M to KM \\1m = 0.001 KM\\9340M = 9.34 KM\\\\Hope \\ this \\helps[/tex]

Sadie has $1 worth of nickels and dimes. She has twice as many nickels as dimes. Write a system of equations that could be used to determine the number of nickels and the number of dimes that Sadie has. Define the variables that you use to write the system.

Answers

N + 2d =1
This is the system of equations because it is 2 times more than nickels

The system of equations which can be used to model the scenario are :

n = 2d _____________(1)

0.05n + 0.10d = 1 _____(2)

Let :

Number of dimes = d

Number of nickels = n

Number of nickels = 2 × number of dimes

n = 2d - - - - - (1)

Worth of nickels and dimes:

A dime = $0.10A nickel = $0.05

The total worth of nickel and dimes can be expressed thus :

(Worth per nickel × number of nickels) + (worth per dime × number of dimes)

(0.05 × n) + (0.10 × d) = 0.05n + 0.10d = 1

Therefore, the systems of equation required are :

n = 2d _____________(1)0.05n + 0.10d = 1 _____(2)

Learn more : https://brainly.com/question/15165519

Which expression represents a negative value?
2 - |-7 + 31
5- |-12 + 91
15| + |-111
9 - 18 - 141

Answers

Answer:

9-18-141

Step-by-step explanation:

9-18= -9

-9-141= (-150)

1. What is the wavelength of a radio wave broadcast at 150 MHz?

Answers

Hope this helps..........

The value of the wavelength will be equal to 2 meters.

It is given that a radio is broadcasting at 150 MHz .

We have to calculate the wavelength.

What is the formula for wavelength ?

The wavelength is given by L = c/f , where c = speed of wave and f is the frequency of wave.

L = c/f

Let's assume c = 3 × 10^8

Given that frequency (f) is 150 MHz .

Wavelength (L) is approximately ;

L= (3 × 10^8 )/ (150,000,000)

L= 2 meters

Thus, the wavelength of a radio wave broadcast at 150 MHz will be equal to 2 meters.

To learn more about wavelength , click here ;

https://brainly.com/question/24846879

#SPJ6

Questions on picture. Please help

Answers

Answer:

A) 2

Step-by-step explanation:

We already know that [tex]i[/tex] equals -1, so we can substitute that into the expression.

[tex](\sqrt{3} +(-1))(\sqrt{3} -(-1))\\(\sqrt{3} -1)(\sqrt{3}+1)[/tex]

Now we can use the distributive property to solve the rest

[tex](\sqrt{3} -1)(\sqrt{3}+1)\\\sqrt{3} *\sqrt{3} +\sqrt{3} -\sqrt{3}-1\\ 3+0-1\\=2[/tex]

Hope this helps! I apologize if I get this incorrect.

is an ice cube melting into water a chemical change?

Answers

Answer:

No

Step-by-step explanation:

When an Ice Cube melts into water it is a physical change not a chemical change because no chemicals were used.

Hope this Helps!!! :)

Let me know if I should change anything or if it was helpful in the comments!!!

what are the fractions that add up to 1
help plzz i will give u brainliest

Answers

Answer:

Things like:

2/9 + 7/9  = 9/9 = 1

3/4 + 1/4 = 4/4 = 1

If the number is the same for the numerator and denominator it adds up to 1.

More examples:

6/10 + 4/10 = 10/10 = 1

9/15 + 6/15 = 15/15 = 1

There are 120 people at a party 1/3 of the peopl leave the party. Work out the number of people still at the party

Answers

40 people left because 120 divided by 3 is 40

Answer:

40

Step-by-step explanation:

how i did it probably isn't normal but first i did 1/3 of 100 and that's 33.33

then i did 1/3 of 20 and that's 6.66 then you just add them together

33.33+6.66 and that's 39.99

then just round up

Can anyone help me answer this? It due in a few minutes

Answers

Answer:

A

D

Step-by-step explanation:

Answer:

●A. (4x + 16)° = 180°

○B. x° = 49°

○C. m<A = 99°

● D. From smallest to largest: <B, <C, <A

The answers are both A and D.

Write 3/4 cup per 1/2 serving as a unit rate

Answers

Answer: Unit rate = 1 1/2 cups per serving

Step-by-step explanation:

1/2 serving has = 3/4 cup

1 serving will have = 3/4 1/2 = 3/4 x 2/1 = 6/4 = 6 ÷ 2/ 4 ÷ 2 = 3/2 = 1 1/2cups

Mario walked at a rate 2/3 miles every 10 minutes. What was his walking rate in miles per hour?

Answers

Answer:

12/18 every hour

Step-by-step explanation:

2/3 =10 minutes

4/6 = 20 minutes

6/9 = 30 minutes

8/12 = 40 minutes

10/15 =50 minutes

12/18 = 60 minutes

If the angle ABC=60 and angle ABD=2x+4 and angle DBC=x-10, slove for x.

Answers

Answer:

x = 46 via Angle Addition postulate (2x+4 = 60 + x-10 )

Step-by-step explanation:

For the given functions f and g, complete parts (a)-(h). F
f(x) = 5x + 8; g(x) = 7x-2

Answers

Answer:

9

Step-by-step explanation:

use math and add way after it

u welcome does work for u

Kelly purchased 6 equally-priced CDs for a total of $75.30 what is the cost per CD?

Answers

Answer:

$12.55 per CD

Step-by-step explanation:

If each CD is of equal price, you must then divide the price by the number of CD's. (75.30/6=12.55)

Answer:

$75.30/6 = $12.55 per CD

Step-by-step explanation:

Since the CDs are equally-priced, my thought is that you would divided the quantity that you purchased by your total to get your answer. So, your total, $75.30 divided by, the amount of CDs purchased, 6. This would lead you to the answer $12.55, which is the cost of each CD. To check your answer you would multiply $12.55 by 6 to get $75.30.

Hope this helped! :D

the average rain fall in cuba in the summer is 5.3 inches per month. if cuba gets 6.3 inches in june and 7.1 in july how much rain do they need in august to exceed their average

Answers

Answer:

They need more than 2.5 inches.

Step-by-step explanation:

average = 5.3

June: 6.3

July: 7.1

August: x

The average of the amounts for June, July, and August is

(6.3 + 7.1 + x)/3

To exceed the average, the average must be greater than 5.3.

(6.3 + 7.1 + x)/3 > 5.3

Multiply both sides by 3.

6.3 + 7.1 + x > 15.9

x + 13.4 > 15.9

Subtract 13.4 from both sides.

x > 2.5

Answer: They need more than 2.5 inches.

what does i2x + 3(x - 5) = 20 equal

Answers

Answer:

x=7

Step-by-step explanation:

2x+3(x-5)=20

2x+3x-15=20

5x-15=20

5x=35

x=7

Answer:

x = 5

Step-by-step explanation:

2x + 3(x - 5) = 20

simplify

5x - 5 = 20

get the variable and the number on different sides

5x - 5 + 5 = 5x

20 + 5 = 25

5x = 25

now divide each side by 5

5x / 5 = x

25 / 5 = 5

x = 5

Susan buys a new computer 1200 dollars.Sales tax is 11%. How much does Susan actually have to pay?

Answers

Start by finding 11% of 1,200. To do so, multiply .11 by 1,200 to get 132. Add 132 to 1,200 to get 1,332.

In short, Susan has to pay *$1,332*

The amount that Susan actually have to pay should be considered as the $1,332.

Calculation of the amount:

Since the purchase price of the computer is $1,200

And, the sales tax rate is 11%

So here the total amount be like

= $1,200 + 11% of $1,200

= $1,200 + $132

= $1,332

hence, The amount that Susan actually have to pay should be considered as the $1,332.

Learn more about sales tax here: https://brainly.com/question/24422578

a) Yolanda owns 9 shares of a certain stock. Yesterday the total value of her shares went down by
90 dollars. What was the change in value for each share?

b) A private club grew 7 members each week for 28 weeks. What was the total change in the club’s size?
(45 POINTS PLEASE HELP MEE)

Answers

a) - 90/9 = -10 (decrease by 10 dollars each)

b) 7 members/week * 28 weeks = 196 members (increase by 196 members)

this is due tonight and i really need this answer, whoever answers god bless.

Answers

Answer:

a. f(1) = -4

b. One value of x for which f(x) = -1 : 2 (or -2)

Step-by-step explanation:

a. To find f(1), we would have to find what the value of the function would be when x = 1. By using the given graph, we can find the f(1) by finding what the y-value is when x = 1. Looking at the graph, we can see that when x = 1, y = -4. Thus, f(1) = - 4.

b. Now we are also asked to find one value of x for which f(x) = -1. In other words, what values of x would make the value of the function equal to -1? We can find values of x for which f(x) = -1 by using the graph and seeing for which x-values would the y-value be -1. We can see that y = -1 at x = -2 and x = 2. So the values of x at which f(x) = -1 are -2 and 2. You can choose either one of these values.

I hope you find my answer and explanation to be helpful. Happy studying.

which single transformation could be used to map quadrilateral EFGH to quadrilateral EFGH​

Answers

Answer:

H

Step-by-step explanation:

An item is priced at $14.07. If the sales tax is 5%, what does the item cost including sales tax?

Answers

Answer:

14.77

Sale Tax: 5.00% or $0.70

Answer:

14.12

Step-by-step explanation:

0.05 is also known as 5%

14.07+0.05=14.12

what is 5 times 7 pls help ❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️

Answers

Thanks you so much making as brainlist

Answer:

5 times 7 is 35.

what is a non translation and a translation​

Answers

Answer:

ye

Step-by-step explanation:

yeyeyyeyyeyeyye

Answer:

In Translation Studies the term ‘non-translation’ is used in a number of different manners, for instance in reference to (a) original texts (versus translated texts), (b) fragments of source text preserved in the original language in the target text, (c) a deliberate refusal to translate a given author or work and (d) the lack or scarcity of translations.

Step-by-step explanation:

Find the value of a and b.
B
85
6
F
с
a
E
a
b=

Answers

U uh yucugctuxugxf TX ryzyzyfzttxxtxyrxyxtx

A grand piano can weighton. How many
ounces can a grand piano weigh?

Answers

Answer:

12800

Step-by-step explanation:

choose the figures that are polygons​

Answers

Answer:

I'm pretty sure figure A is the only one correct and also figure D

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