In a math class with 21 students, a test was given the same day that an assignment was due. There were 12 students who passed the test and 14 students who completed the assignment. There were 4 students who failed the test and also did not complete the assignment. What is the probability that a student completed the homework given that they failed the test?

Answers

Answer 1

Answer:

5/9

Step-by-step explanation:

The given is students that failed the test. 5 students completed the homework and failed the test and there is a total of 9 students who failed the test. So, the answer would be 5/9

Answer 2

Using it's concept, it is found that there is a 0.5556 = 55.56% probability that a student completed the homework given that they failed the test.

What is a probability?

A probability is given by the number of desired outcomes divided by the number of total outcomes.

In this problem, there are 21 - 12 = 9 students who failed the test, and of those, 9 - 4 = 5 completed the homework, hence the probability is given by:

p = 5/9 = 0.5556.

0.5556 = 55.56% probability that a student completed the homework given that they failed the test.

More can be learned about probabilities at https://brainly.com/question/14398287

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Related Questions

(X-1)(-5X+1)=0
lesser X=
Greater X=

Answers

Lesser X= 1/5 (-5x+1)
Greater X= 1 (x-1)
Hope this helps!

Answer:

lesser x is -5x+1

Greater x is x-1

What is the order of the following set of numbers from greatest to least? 1 1/3, 2/3, -1/3. 9/5 O 1/3,2/3,9/5, 1 1/3 -1/3.1 1/3, 2/3, 9/5 09/5, 2/3,1 1/3,-1/3 9/5, 1 1/3, 2/3, -1/3​

Answers

Answer:

11/3, 9/5, 9/5 , 2/3 , 1/3 , -1/3.1 , -1/3

a con​tinuous ​function is differentiable.true or false?​​​​​​​​

Answers

Answer:

false

Step-by-step explanation:

its equal every time because its countinuous

Help me with the work please if you can

Answers

Answer:

D, 525

Step-by-step explanation:

1) Find what percent 45 is out of 150

45/150 x 100/100 = 4,500/15,000 = 30/100 = 30%

2) Find 30% of 1,750

1,750 x 0.3 = 525

Answer= D

Find the area of the trapezoid. If the answer is not an integer, leave it in simplest radical form. The figure is not to scale

Answers

Answer:

150 ft²

Step-by-step explanation:

Area of trapezoid = ½(a + b)h

Where,

a = 24 ft

b = 24 + 12 = 36 ft

h = √(13² - 12²) = √25 = 5 ft (pythagorean theorem was applied here)

Plug in the values

Area of trapezoid = ½(24 + 36)*5

= ½(60)*5

Area of trapezoid = 150 ft²

Hoshi has $50. Emily has $23 more than Hoshi. Karl has $16 less than Emily. How much money do they have all together?

Answers

Answer:

88

Step-by-step explanation:

50 - 23 = 27

27 - 16 = 11

50 + 11 + 27 = 88

in the triangle shown determine a to the nearest degree

Answers

Answer:

43

Step-by-step explanation:

Cos A= 8/11

Cos A= 43.34

A=43.34

What is the value of S3 for
20/9
20/3
65/9
65/3

Answers

Answer:

65/9

Step-by-step explanation:

Substitute 3 for the infinity sign above the sigma and solve with a calculator. Correct edge2021

ANSWER THE QUESTION FOR BRAINLIEST

Answers

4th answer -3,0,1,2,3

6
A painter sets a ladder
against a wall 9 ft above
the ground. If the ladder is
3 feet from the base of the
wall, how long is the ladder?
Round your answer
to the nearest tenth.

Answers

Answer: About 10 ft.

Use Pythagorean's Theorem!

c=[tex]\sqrt{9^2+3^2}[/tex]

9 * 9 = 81

3 * 3 = 9

81 + 9 = 90

[tex]\sqrt{90\\}[/tex] = 3[tex]\sqrt{10}[/tex] ≈ 10 ft.

9+q<15 solve the inequalitie

Answers

Answer:

q < 6

Step-by-step explanation:

9 + q < 15                                                                                                                 subtract 9 from both sides        

Jackson is interested in the number of memories people can recall. He knows that the number of memories recalled is normally distributed in the general population, with a population mean of 30 and a population standard deviation of 5. What is the probability that Jackson randomly selects a person from this population who recalls between 26 and 29 memories

Answers

Answer:

0.2088 = 20.88% probability that Jackson randomly selects a person from this population who recalls between 26 and 29 memories.

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

Population mean of 30 and a population standard deviation of 5.

This means that [tex]\mu = 30, \sigma = 5[/tex]

What is the probability that Jackson randomly selects a person from this population who recalls between 26 and 29 memories?

This is the pvalue of Z when X = 29 subtracted by the pvalue of Z when X = 26. So

X = 29

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

[tex]Z = \frac{29 - 30}{5}[/tex]

[tex]Z = -0.2[/tex]

[tex]Z = -0.2[/tex] has a pvalue of 0.4207

X = 26

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

[tex]Z = \frac{26 - 30}{5}[/tex]

[tex]Z = -0.8[/tex]

[tex]Z = -0.8[/tex] has a pvalue of 0.2119

0.4207 - 0.2119 = 0.2088

0.2088 = 20.88% probability that Jackson randomly selects a person from this population who recalls between 26 and 29 memories.

HELP ASAP !!! giving out the brainliest answer !!! plsss help (has to be correct )

Answers

Answer:

b maybe

Step-by-step explanation:

I think it may be being mentally stronger trying to help you

Six gallons of a salt solution consists of 35% salt. It is the result of mixing a 40% solution with a 30% solution. How many gallons of each of the solutions was used? Let x= the number of gallons of the 40% solution and y= the number of gallons of the 30% solution. The corresponding modeling system is {x+y=60.4x+0.3y=0.35(6). Solve the system by using the method of substitution.

Answers

look her at getmathhelp . com

PLEASE HELP!!!!!!!!!!

The Expression
12
3+9
is what:
A: Sum
B. quotient
C. difference

Answers

Answer:

Sum

Step-by-step explanation:

It needs 2 be 20 characters so dont mind me . . .

wait hol up i took the test again sorry um it quotient

HELP URGENT PLEASSSSSSSSSSSSSSEEEEEEEEEEEEEEEE

Answers

Answer:

1 4/5 pounds each

Step-by-step explanation:

9/5 = 1 4/5

Given h(x)
-2x + 5, solve for x when h(x) = 3.

Answers

Answer:

x = 1

Step-by-step explanation:

h(x) = -2x + 5 and h(x) = 3

which means -2x + 5 = 3

solve for x

-2x + 5 = 3

      -5     -5

-2x = -2

-2      -2

x = 1

-2x+5=3
-2x=3-5
-2x=-2
x= -2/-2
x= 2/2
x=1

QUESTION BELOW PLEASE HELP


Answers

Answer:

61°

Step-by-step explanation:

180° - 119° = 61°

factor the polynominal 5x^2y + 6x^2y^3 - 3x^3y^2

Answers

Answer: x^(2)y(5+6y^(2)-3xy)

Step-by-step explanation: Factor x^(2)y out of 5x^(2)y + 6x^(2)y^(3)- 3 x^(3)y^(2)

brainliest or a thank you please! :) <33

Julie is deciding which bank she should invest $5.000 with in order to maximize her
return. Select the answer that would earn Julie the most money after 10 years.
a. Bank A offers 6% APR compounded annually
b. Bank B offers 6% APR compounded semi-annually
c. Bank C offers 5.1% APR compounded daily
d. Bank D offers 6.3% APR compounded monthly

Answers

The answer is C to your question

Answer:d

Step-by-step explanation:

Which statements must be true to model a data set using a normal distribution?

The sample mean must equal the population mean.
The standard deviation of the population must be less than 30.
The sample must be randomly selected.
The sample size, n, must be at least 30.
The population mean must be greater than the sample mean.

Answers

Answer:

The sample must be randomly selected.

The sample size, n, must be at least 30.

Step-by-step explanation:

Plato

Answer:

The sample must be randomly selected.

The sample size, n, must be at least 30.

Step-by-step explanation:

Plato/Edmentum

Jasmine has $4.90 in quarters, dimes, nickels, and pennies. She has 2 more dimes than
quarters. She has 3 more nickels than quarters. She has 4 more pennies than quarters. How
many quarters does Jasmine have? Note: A quarter is worth $0.25, a dime is worth $0.10, a
nickel is worth $0.05, and a penny is worth $0.01.

Answers

Answer:

11

Step-by-step explanation:

I have no idea what this question means but if anyone understands it or has an answer much help is apreciated! :)

Answers

Here, we have to factorise :

- 12n - 20

Consider the largest number which is the factor of both -12 and -20, that is -4.

→ -4 × 3n = -12n

→ -4 × 5 = -20

Taking (-4) as common,

→ -4( 3n + 5 )

Option B is correct. [tex] \checkmark [/tex]

5. Alexis has $95. She has 2 more five-dollar bills, 5 more one-dollar bills, and 2 more
ten-dollar bills than Kasai. How much money does Kasai have?

Answers

Answer:

60

Step-by-step explanation:

:)) tht should b right

find the length x

help pls , need asap

Answers

Answer:

x = 8

Step-by-step explanation:

[tex]\frac{6}{x}[/tex] = [tex]\frac{3}{4}[/tex]

cross multiply

3x = 6(4)

3x = 24

divide

x = 8

4:3=x:6
x=4•6/3
x=24/3
x=8
Check:
6/3=2
8/4=2
Good luck.

Which function represents a quantity growing exponentially?

A y = 2(0.5)^x
B y = 0.5(2)^x
C y = 2(0.5)^2X
D y = (1/5)^x

Answers

Answer: [tex]ay=2(0.5^{x})[/tex]

Step-by-step explanation:

A y = 2(0.5)^x

Which choices are correct when determining the distance between -240 and -35 on a number line?

Answers

Answer:

A

Step-by-step explanation:

240-35)=205

240-35

205

Answer:

Step-by-step explanation the first one

Evan purchased 6 boxes of sugar cookies, each box containing 10 snack bags and
each bag containing 12 cookies. Evan could have purchased the same amount of
cookies by buying how many family sized packs of 30 cookies each?
a. 12
b. 24
d. 72
C. 48
e. 180

Answers

Evan needs a bag containing 48cookies

Answer:

Doesn't make sense. There are 12 cookies in each box. 12 multiplied by 6 is 72 cookies. The snack bags don't count.

Step-by-step explanation:

A spherical cantaloupe is cut in half. The visible cross-section has an area of 5252 in2. The volume of the cantaloupe is _____ cm3. Round your answer to the tenths place.

Answers

Answer:

V = 286319.465 cm3

Step-by-step explanation:

First, you have to find the radius to be able to find the volume of a sphere.

The equation for the area of a circle is pi r^2 so you have to so some algebra.

5252 = pi r ^2

5252/pi = r^2

1671.76352 = r^2

sqrt(1671.76352) = r

r = 40.8872048

then you do the equation for the volume of a circle which is 4/3 pi r^3

4/3 pi (40.8872048)^3

4/3 pi 68353.7373

4/3 214739.599

286319.465

V = 286319.465 cm3

Pls help 20 points !

Answers

Answer:

the answer is 168 is the answer

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