A college professor teaching a class of Psychology gives the following grades during Fall semester: 15% A’s, 20% B’s, 40% C’s, and 10% D’s. The remainder of the students receive an F.
What is the probability that a randomly selected student does not earn an A in this class?

Answers

Answer 1

Answer:

85%

Step-by-step explanation:

Because we can see that only 15% of the class obtained A's, and the question only refers to those that did not receive A's, we can subtract the 15% of the 100% whole to get 85%. This can also be written as 85/100 or 17/20(simplified).


Related Questions

The Longboat Key town council wants to know if residents are in favor of a traffic camera at the main intersection in town. Drag tiles to match each term to the example it best describes. Each tile may be used only once.

Answers

Answer:

Drivers who reside in longboat= Not a Representative Sample

Residents of long boat key= Population

Residents randomly chosen= Representative sample

Step-by-step explanation:

Answer:

Step-by-step explanation:

i don't know

A professional tennis player has a serve-return rate of p = 0.71. A random sample of 55 serve returns is selected. Which of the following is the mean of the sampling distribution of p hat ?

Mu Subscript p hat Baseline = p = 0.71
Mu Subscript p hat Baseline = n p = 55 (0.71) = 39.05
Mu Subscript p hat Baseline = 1 minus p = 1 minus 0.71 = 0.29
Mu Subscript p hat Baseline = n (1 minus p) = 55 (1 minus 0.71) = 15.95

Answers

Answer:

I would say A is the answer

(13x-26) (5x+8) PLEASE HELP

Answers

Answer: X= 11

Step-by-step explanation: 13x-26 and 5x+8 are Linear Pairs which are supplementary. 13x-26+5x+8 is equal to 18x-18=180. 18x=198 and then X=11

What two numbers multiply to get 3 and add to get 6

Answers

Answer:

3

Step-by-step explanation:

Ms. Ponse knows that only 44% of the pencils she
leis students borrow will be returned to her. She will
let students borrow 125 pencils in the second
semester. How many pencils can Ms. Ponse plan on
getting back?

Answers

Answer:

55

Step-by-step explanation:

44% * 125 = 0.44 * 125 = 55

Answer:

She can expect to receive back 0.44(125 pencils) = 55 pencils

Step-by-step explanation:

She loans out 125 pencils.  If 44% will likely be returned, then 100% - 44%, or 56%, will not be returned.

She can expect to receive back 0.44(125 pencils) = 55 pencils

An experienced carpenter could build a house in 4 days. How much would he have finished if
he worked for 3 days?

Answers

Answer:

Percentage: 75%

Fraction: 3/4

Step-by-step explanation:

quick! A cone has a volume of 1356.48 cubic centimeters and a height of 16 centimeters. What is its radius?

Answers

Answer:

≈9

Step-by-step explanation:

V= πr^2(h/3)

1356.48= πr^2(16/3)

r= 8.99 or about 9

Tina said that circles in a Venn diagram must always overlap. Is Tina correct yes or no? Explain your answer.​

Answers

Answer:

No

Step-by-step explanation:

This is because a Venn diagram is made up of two or more circles. The Venn diagram is used to find the amount that everyone agrees with. This means you have to make them overlap in order to find the answer.

Marcus investigates businesses to see how much product they need to sell to make a profit. At a cupcake company, Marcus wants to figure out the minimum number of cupcakes they need to sell each week to make a profit.
It costs 35 cents in supplies to make each cupcake.

His rent, electricity and labor costs for his store each week is $1850.00.

He sells each cupcake for $5.50.

What is the minimum number of cupcakes needed to make a profit?


337



359


360


5286

Answers

Answer:

360

Step-by-step explanation:

Solve the following quadratic equation for all values of x in simplest form.
(x – 4)^2 – 47 = 32

Answers

Answer:

x=4-√79, x=4+√79

Step-by-step explanation:

You randomly choose a marble from a jar. The jar contains 3 red marbles, 10 blue marbles, 8 green marbles, and 4 yellow marbles. Find the probability of choosing a blue marble as a PERCENT.

Answers

Answer:

first add all the marbles

25 total

then there are 10 blue marbles

so the probability is 10/25

u hope that helps

have a nice day

#Captainpower

can I get a brainliest pls

Answer:

40%

Step-by-step explanation:

10 out of 25 = 40 %

Have a great day

Hope it helps :)

Isaac has a points card for a movie theater. He receives 45 rewards points just for signing up. He earns 11.5 points for each visit to the movie theater. He needs 160 points for a free movie ticket.

Answers

Answer: 10 visit

Step-by-step explanation:

Given

45 Points earned by signing up

11.5 points earned for each visit to the theatre

160 points are needed for a movie ticket

Suppose, after x visit he gets enough points to buy a movie ticket

[tex]\therefore 160=45+11.5x\\\Rightarrow 115=11.5x\\\Rightarrow x=10[/tex]

So, after 10th visit, he earns a movie ticket


Find the area of the figure. Round to the nearest tenth.

HELP ASAP!!

Answers

Answer:

A

Step-by-step explanation:

f=1/2(a+b)×h1/2(1.6+4)×22.8×25.6 since to round off 5.6 to the nearest tenth consider the hundredths' value of 5.6 which is 0. therefore the tenths value of 5.6 remains 5.6

someone give me the answeres ill mark brainliest if correct :)

Answers

Answer:

1) True

2) false

3) false

4) faIse

Did I give right answer or not please tell me ok

HELPPPPP me please !!!

Answers

Answer:

Step-by-step explanation:

Can somebody plz help answer these questions correctly (only if u know how to do it) thx sm! :3

WILL MARK BRAINLIEST WHOEVER ANSWERS FIRST :DDDD

Answers

Answer:

<5 = 30

<6 = 60

<BFD = 120

Step-by-step explanation:

A garden table and a bench cost $624 combined. The garden table costs $76 less than the bench. What is the cost of the bench?

Answers

Answer:

350

Step-by-step explanation:

All students in Ridgewood Junior High School either get their lunch in the school cafeteria or brought it from home on Tuesday. 10% of students brought their lunch. 41 students brought their lunch. How many students in total are in Ridgewood Junior High School?

Answers

Answer:

Step-by-step explanation:

All students in Ridgewood Junior High School either get their lunch in the school cafeteria or brought it from home on Tuesday. 10% of students brought their lunch. 41 students brought their lunch. How many students in total are in Ridgewood Junior High School?

How would it be solved ?

Answers

Answer:

m<1=1/2 216 =108

then 2 is 180 -108 =72

Please answer

3x+5x-5x

Answers

Answer:

3x

Step-by-step explanation:

Combine Like Terms:

=3x+5x+−5x

=(3x+5x+−5x)

=3x

Hope it helps :)

Answer:

=3x

Step-by-step explanation:

cancel out 5x-5x, which leaves you with 3x.

i hope this helps :)

PLEASE HELP PELASE
For ΔABC, the measure in degrees of angles A, B, and C are 60, 55, and x + 20 respectively. What is the value of x?

A.
65

B.
45

C.
95

D.
25

Answers

Answer:

B.45

Step-by-step explanation:

A sum of all angles in a triangle is 180°55+60+x+20=180

60+55=115

180-115=65

65-20=45

Answer: 45°

Change 10 m/s in km/h

Answers

36 km/h is the answer

Answer:

The answer is 36km/h

Step-by-step explanation:

10m/s * 3,6 = 36km/h

Given that the triangles are similar find the scale factor of ABC to ACD and the value of X.

SCALE FACTOR ABE TO ACD

Answers

Answer: Scale Factor: [tex]\frac{7}{4}[/tex] or 1.75

x= 24[tex]\frac{1}{2}[/tex] or 24.5

Step-by-step explanation:

12+16=28

12+9=21

x=14([tex]\frac{7}{4}[/tex]) =[tex]\frac{98}{4}[/tex]=24[tex]\frac{2}{4}[/tex]=24[tex]\frac{1}{2}[/tex]

x= 14(17.75)=24.5

ΔACD/ΔBE : [tex]\frac{AD}{AE}[/tex]=[tex]\frac{21}{12}[/tex][tex]\frac{/3}{/3}[/tex]=[tex]\frac{7}{4}[/tex]

ΔACD/ΔBE: [tex]\frac{AC}{AB}[/tex]= [tex]\frac{28}{16}[/tex] [tex]\frac{/4}{/4}[/tex] =[tex]\frac{7}{4}[/tex]

Which point on the number line represents 1/4?

Answers

1/5 hope this helps have a good day :)

Answer:

K

Step-by-step explanation:

Carlos deposits $250 into a savings account that earns 4% interest added to it annually. How much interest is added at the end of the year?

The O’Neill Raiders fundraiser has raised $700, which is 28% of their total fundraising goal. What is their total goal?

Sameer scored better than 78% of all students taking a standardized exam. If 650 students took the exam, how many did Sameer score better than?

Answers

Yes he is in the car with him he said yes yes I got him a

The interest added at the end of the year is $10, The total goal of O’Neill Raiders fundraiser is $2500 and Sameer scored better than 507 students.

What is Percentage?

Percentage is the parts of a number per fraction of 100. We can divide a number with it's whole and then multiply with 100 to calculate the percentage of any number.

Initial amount, P = $250

Rate of interest, r = 4% = 0.04

Interest amount = P × r × t, where t is the number of years = 1 here.

                          = 250 × 0.04 × 1

                          = $10

28% of the total fundraising goal = $700

Let x be the total fundraising goal.

28% × x = 700

0.28x = 700

x = 700 / 0.28 = $2500

Total number of students = 650

Sameer scored better than 78% of all students.

Number of students that Sameer scored better = 78% × 650

                                                                               = 0.78 × 650

                                                                               = 507

Hence all the answers are found.

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NO SCAMMERS!!!! I WILL REPORT! MAX POINTS!!!!! ARCS & ANGLES NEED TO KNOW HOW TO DO IT. ANSWERS ALSO VERY MUCH APPRECIEATED !!!FRESHMAN CLASS GEOMETRY!!!

Answers

Answer:

[i] 12x + 5 = 1/2(83 +95)

12x + 5 = 89

12x = 84

x = 7.

[ii] 9x + 7 = 1/2(198 + 7x - 8)

18x + 14 = 198 + 7x - 8

11x = 176

x = 16.

[iii] 15x - 8 = 1/2(16x +1 + 5x + 19)

30x16 21x + 20

9x = 36

x = 4.

[iv] 20x - 4 = 360 - 2 × 72

20x = 220

x=220/20=11°

[v] 13x - 1 = 2(6x + 11)

13x - 1 = 12x + 22

x = 23.

[vi] 46 = 1/2(21x-5-x-23)

20x2892

20x = 120

x = 6.

[vii] 6x - 21 = 1/2(13x - 3-3x - 11)

12x - 4210x - 14

2x = 28

x = 14.

[viii] 2x + 1 = 1/2(9x − 14 − 4x + 7)

4x + 2 = 5x - 7

x = 9.

[ix] 9x - 4 = 180 - 76

9x - 4 = 104

9x = 108

x = 12.

put the following equation of a line into slope-intercept form, simplifying all fractions 16x - 4y = -20

Answers

Answer:

y = 4x + 5

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c

Given

16x - 4y = - 20 ( subtract 16x from both sides )

- 4y = - 16x - 20 ( divide terms by - 4 )

y = 4x + 5 ← in slope- intercept form

The equation of a line into slope-intercept form is [tex]y = 4x + 5[/tex].

What is the slope of line?

The slope of a line gives the measure of its steepness and direction.

The slope of a straight line between two points says [tex](x_1,y_1),(x_2,y_2)[/tex] and (x2,y2) can be easily determined by finding the difference between the coordinates of the points. The slope is usually represented by the letter ‘[tex]m[/tex]’.

As we know that, the equation of a line in slope- intercept form is

[tex]y = mx + c[/tex]

where [tex]m[/tex] is the slope and [tex]c[/tex] is the y-intercept.

So,

[tex]16x - 4y = - 20\\\\-4y=-20-16x\\\\-4y=-(16x+20)\\\\4y=16x+20\\\\y=\frac{16x}{4}+\frac{20}{4}\\\\y=4x+5[/tex]

Hence, the equation of a line into slope-intercept form is [tex]y = 4x + 5[/tex].

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Let f(x) = 3x² + 2x – 4 and g(x) = 5x + 7.
Which of the following terms will be part of f(x) + g(x)?

Answers

Answer:

i dont know fr sorry i need the points );

Step-by-step explanation:

Answer:

3x²+7x+3

Step-by-step explanation:

A function is a relation in which every input has exactly one output. Which choice represents a function?

Answers

The top answer is a virus please DONT click it

PLEASE ANSWER QUICKLY

Robert's yacht holds 70 passengers. Each hour he stops at the marina to let some passengers off and on. The scatter plot shows how many passengers are on board during each hour of boating
write an equation in slope intercept form for the line that is drawn
use the equation to make a conjure about how many passengers will be on the boat at hour six

Answers

Answer:

65 passengers

At hour six, about 54 passengers will be on the boat.

What is the line of best fit?

A straight line that minimizes the gap between it and certain data is called a line of best fit. In a scatter plot containing several data points, a relationship is expressed using the line of best fit. It is a result of regression analysis and a tool for forecasting indicators and price changes.

Sum of X = 15

Sum of Y = 195

Mean X = 3

Mean Y = 39

The sum of squares (SSX) = 10

The sum of products (SP) = 50

Regression Equation = ŷ = bX + a

b = SP/SSX = 50/10 = 5

a = MY - bMX = 39 - (5*3) = 24

ŷ = 5X + 24

When x = 6,

we get ŷ = 5(6) + 24 = 54

Therefore, the approximate number of passengers is 54.

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