Giving a test to a group of students, the grades and gender are summarized below A B C Total Male 18 2 15 35 Female 20 12 19 51 Total 38 14 34 86 If one student is chosen at random, Find the probability that the student did NOT get an "B"

Answers

Answer 1

Answer:

If we are choosing students at random from all students who got a B:

Total number of non-female students who got a B: 19

Total number of students who got a B: 36

Probability: 19/36

If we are choosing students at random from all students:

Total number of non-female students who got a B: 19

Total number of students: 78

Probability: 19/78


Related Questions

Carol has 8 3/4 yards of material. She needs to use 1/3 of the material to make a dress. How many yard of material will she need to make the dress

Answers

9514 1404 393

Answer:

  2 11/12 yards

Step-by-step explanation:

Sometimes it works best to use improper fractions when multiplying mixed numbers and/or fractions.

  1/3(8 3/4) = 1/3(35/4) = 35/12 = 2 11/12

Carol will need 2 11/12 yards of the material for the dress.

Answer:

2 11/12 yards

Step-by-step explanation:

There was a total of 184 teachers and students at an archery lesson.
3/4

of the teachers is equal to of the students.
2/5

How many teachers were there at the archery lesson?​

Answers

The question isn’t complete, doesn’t make sense. Can you rewrite the questions. Cuz I ain’t getting what the 2/5 or 3/4 referring to.

a die is rolled 200 times with the following results outcome 123456 frenquency 32,36,44,20,30,38 what is the probability of rolling the given result ah number more than 3

Answers

Answer:

44%

Step-by-step explanation:

P(>3) =

P(4 or 5 or 6) =

(20 + 30 + 38)/200 =

88/200 = 0.44 or 44%

Can someone help me I know it's easy but please don't flame me in the comments.

Answers

Answer:

your answer is B

Step-by-step explanation:

i think the answer is b, x<7!

4 2/3+1 3/4 give your anwser as a mixed number

Answers

Answer:

5 6/12 or 5 1/2

Step-by-step explanation:

At a high school, 14% of all students play a sport and 9% of all students play a
sport and participate in a club. What is the probability that a student participates in
a club given that they also play a sport?

Answers

Answer:

0.6429

Step-by-step explanation:

Let, s = play a sport

c = participate in a club

P(s) = 0.14

P(s n c) = 0.09

probability that a student participates in

a club given that they also play a sport = P(c | s)

P(c | s) = P(c n s) / P(s)

P(c | s) = 0.09 / 0.14

P(c | s) = 0.64285

= 0.6429

Record the data in a table with the rows representing the type of music and the columns representing the weeks.

What number does element a12 represent?


90


100


150


200

Answers

Answer:

150

Step-by-step explanation:

The element a₁₂ represents the first row and second column which is 100. Then the correct option is B.

What is a histogram?

A diagram is made up of rectangles whose size is related to a variable's frequency and whose width is comparable to the training sample.

A matrix is a specific arrangement of items, particularly numbers. A matrix is a row-and-column mathematical structure. The a_{ij} element in a matrix, such as M, refers to the i-th row and j-th column element.

Record the data in a table with the rows representing the week and the columns representing the type of music.

The element a₁₂ represents the first row and second column which is 100. Then the correct option is B.

More about the histogram link is given below.

https://brainly.com/question/16819077

#SPJ2

What is the type of angle pair?

Answers

Answer:

x=38 The angle type is alternate exterior

Step-by-step explanation:

Answer:

alternate angle pair are they

Step-by-step explanation:

# Jerry Don is here#

?! if you make $20,800 a year, what is your weekly salary? there are 52 weeks in a year​

Answers

Answer:

you would make 400 each week

Step-by-step explanation:

x root +29= root 4096​

Answers

Square root of x +29= square root of 4096

Square root of x +29=64
Square root of x=35
To find x you add an exponent on both sides
X=1225

I need help again I don’t understand this

Answers

Answer:

i'm not too sure about the other ones but i know that 2^5 (the third choice) is an answer

Answer:

I think the answer would be the third choice

1.5r – 3r + 8r + 2.5r​

Answers

Answer:

9r

Step-by-step explanation:

If θ is a second-quadrant angle and cosθ = - 2/3, then tanθ=

a. -2 (sqrt 5)/5
b. - (sqrt 5)/2
c. - (sqrt 5)/3

Answers

Answer:

since in second quadrant cos θ is negative.

Cos θ=b/h=2/3

b=2

h=3

p=√(3²-2²)

p=√5

Now

Tan θ=p/b=√5/2

since in second quadrant tanθ is negative

so

Tanθ=-√5/2

b. - (sqrt 5)/2

In second Quadrant cos is negative

cosØ=b/h=2/3

So

b=2 and h=3

Perpendicular

p²=h²-b²p²=3²-2²p²=5p=√5

tanØ=-p/b =-√5/2

James has 16 more game cards than Fay. If they have 48 game
cards altogether, find the number of game cards James has.

Answers

Answer:

James has 32 game cards

Step-by-step explanation:

X=Fay

x+16=James

X(Fay) + (x+16) James =48

x+x+16=48

2x=32

x=16 Fay

x+16 James

16 + 16=32 James

check answer:

16 Fay + 32 James =48

16+32=48

48=48

heartbreak anniversary

Answers

Answer:

Please include a picture or question of it please if you want someone to answer it.

which of these r-values represents the weakest correlation?

A. -0.35
B. -0.75
C. -0.15
D. -0.05

Answers

D -0.05 The closer the correlation is to 0, the weaker it is

The r-value is that represents the weakest correlation is D. -0.05

What is linear regression line?

The connection between the independent (x) and dependent (y) variables in the graph can be graphically represented using regression lines.

In a linear model, the terms are added rather than multiplied, divided, or provided as a non-algebraic function, as has been the case thus far in this section. Analysis of experimental, monetary, and biological data as well as complex system prediction are both possible using linear modelling.

A statistical technique used to build a linear model is called linear regression. The model explains how one or more independent variables Xi relate to a dependent variable y (also known as the response) (called the predictors). The distance between each data point and the regression line is called a residual.

Given data ,

The r-value is a measure of the strength and direction of the linear relationship between two variables. It ranges from -1 to 1, where -1 indicates a perfect negative correlation, 0 indicates no correlation, and 1 indicates a perfect positive correlation.

Among the given options, the r-value that represents the weakest correlation is D. -0.05. This is because the absolute value of -0.05 is small compared to the other options, indicating a weaker linear relationship between the variables.

To learn more about linear regression click :

https://brainly.com/question/29753986

#SPJ7

Title
34.8 + 6.879 -
4
The ratio of boys to girls in the school’s choir is 5:4. If there
are 12 girls in the choir
, how many students are in the
choir?
45% of 75 -

Answers

Answer:

34.8 + 6.879 = 41.679

The ratio of boys to girls in the school’s choir is 3:4. If there

are 12 girls in the choir then there are 9 boys

45% of 175 is 78.75

8^2 - (5^2+ 1) = 38

Brainliest?

If 3x + 11 = 4x - 5, what is x?

Answers

Answer:

16v

Step-by-step explanation:

3x + 11 = 4x - 5

11+5 = 4x -3x

x = 16

I hope im right!!

3x + 11 = 4x - 5
First put the same variables on one side and remember to switch their signs
3x - 4x = -5 - 11
-1 x = -16
x = -16/-1
x = 16

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

Answers

Answer: 1230

Step-by-step explanation: 22 hours that's how much she will be studying in total till the seventh day

and 105 mins till the seventh day

so she will be studying 1230 in total so put 1230 at the blank

1230 is your answer

Answer:

Part B: 105

Step-by-step explanation:

15

15x2 =30

30x2 =60

60x2 =120

120x2 =240

240x2 =480

480x2 =960

960/60 =16 hours

I hope I helped!

write the multiplicative inverse of
a) -13/19​

Answers

Answer:

[tex] - \frac{19}{13} [/tex]

Step-by-step explanation:

[tex]the \: multiplicative \: inverse \: of \: \\ - \frac{13}{19} = - \frac{19}{13} [/tex]

Product of a number and its multiplicative inverse should be equal to 1.

So,

[tex] \bigg ( - \frac{13}{19} \bigg) \bigg ( - \frac{19}{13} \bigg) [/tex]

[tex]= \frac{13}{19}\times \frac{19}{13} [/tex]

[tex]=1 [/tex]

Determine which of the following ordered pairs satisfies the given system of equations.
{−2x+y=8y=2x5−8

Answers

Answer:

(-3,2)

Step-by-step explanation:

What’s the exact volume of the cone?

Answers

i think it’s v= 167.55

Answer:

3.......................

The point Q(0, -1) is translated 6 units up. What are the coordinates of the resulting point, Q′?

Answers

Answer:

Q' (0,5)

Step-by-step explanation:

We know that original point Q is (0, -1), we are then told that it has been translated 6 units up. With being asked what is the new point coordinates, or Q'.

To solve, first we need to know what axis belongs to what.

X is left and right

Y is up and down.

Since we know that Q' is 6 units higher than Q, we need to increase the value in the y axis. (x,y)

-1 + 6

5

Therefore the coordinates to Q' is (0,5)

Answer:

(0,5)

Step-by-step explanation:

I can help

(x, y) is the order.

X is horizontal

y is vertical

If you move up 6 from -1, it goes

0  1  2  3  4  5

Therefore you will get  (0,5)

I hope I help and made it simple fro you to understand.

Can I please have brainliest?

HELP FAST PLEASE WILL MARK BRANLIIST help with all 3 please ​

Answers

Answer:

See below

Step-by-step explanation:

5. 3x^2 y

6. x

7. 5y^2 b^2

You can factor, getting these answers shown above

Hope this Helps!

What are the characteristics of a function and how can we identify them?

Answers

Answer:

A function is a mathematical relationship where all inputs must have exactly one output. If there is more then one output for one input, then the relationship is not a function.

x is most of the time the input and y the output for an equation:

y = 2x

of course the input and output could be any variable.

Step-by-step explanation:

Have a nice day!

Identify the input values.
Identify the output values.
If each input value leads to only one output value, the relationship is a function. An easy way to determine whether a function is a one-to-one function is to use the horizontal line test on the graph of the function. To do this, draw horizontal lines through the graph. If any horizontal line intersects the graph more than once, then the graph does not represent a one-to-one function.

Four friends are buying healthy snacks at the concession stand.The costs of their snacks at $1,$3,$4,and $4.Select True or False for each statement.

Answers

7a: true
7b: true
7c: false
7d: true
i believe they’re all correct, to find mean you just add them all and divide by 4, which gives 3. then the difference between the greatest (4$) and mean (3$) is 1 so incorrect and then do the same for 7d.

Answer:

the first 2 are true the third one is false but I'm not too sure about the last one I think it would be true but I don't want to be the reason you get it wrong

Step-by-step explanation:

to find the mean you add all of them and divide by the number of items so the mean is 3.

I hope this helps I'm sorry I can't give you the exact answer to the last one

The circumference of a circle is 132 dm, find it's diameter?​

Answers

Answer:

42.0169cm

Step-by-step explanation:

Using the formulas

C=2πr

d=2r

Solving ford

d=C

π=132

π≈42.0169cm

what is the equation of the line that passes through the point (0,4) and (3,8)

Answers

Answer:

B

Step-by-step explanation:

this should be right

Answer:

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

Step-by-step explanation:

I used the slope formula and slope-intercept form  y  =  m x  +  b  to find the equation.

Hope this helps:)

Same-side interior angles always add
up to 180°. If 44 and 46 are same-side
interior angles, what is the measure of «6?
44=123°
4 6 = [?]
46

Answers

Answer:

∠6 = 57°

Step-by-step explanation:

∠6 = 180° - 123° = 57°

The following sample observations were randomly selected. x53634468y1315712131195 Click here for the Excel Data File Determine the coefficient of correlation and the coefficient of determination. Interpret the association between x and y. (Round your coefficient of determination to 4 decimal places. Round all other answers to 2 decimal places. Negative values should be indicated by a minus sign.)

Answers

Answer:

R = -0.8908

R² = 0.7935

Step-by-step explanation:

Given the data:

X :

5

3

6

3

4

4

6

8

Y :

13

15

7

12

13

11

9

5

Using technology, we could obtain the correlation Coefficient (R) using the Pearson correlation Coefficient calculator :

R = -0.8908 ; This means that there is a strong negative relationship between x and y. That is, an increase in x will lead to a corresponding decrease in y and vice versa.

The Coefficient of determination (R²) ; is obtained by taking the squared value of R

R² = (-0.8908)² = 0.7935 ; This means that about 79.35% of the variation is y is explained by the regression line.

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