mrs. rodrigues wants to compare the spread of the test scores of her two biology classes. which statistic should she use? (multiple choice)

a.) mean
b.) standard deviation
c.) median
d.) mode

if anybody can help me with this, thank you so much! i'm trying to pass a pre-test on e.d.g.e.n.u.i.t.y :( if you know the answer, please explain instead of just giving me the answer alone. thank you! <3

Answers

Answer 1
C Its definitely c...........
Answer 2

Mrs. Rodrigues should use Standard deviation.

The correct option is b.

What is a standard deviation?

The square root of the variance is used to calculate the standard deviation, a statistic that expresses how widely distributed a dataset is in relation to its mean.

Given:

Mrs. Rodrigues wants to compare the spread of the test scores of her two biology classes.

From the given choices:

The measures of spread include:

Range, quartiles, interquartile range, variance and standard deviation.

Standard deviation is the appropriate choice.

Therefore, standard deviation is the correct phrase.

To learn more about the standard deviation;

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Related Questions

A paperweight in the shape of a rectangular prism is shown: A right rectangular prism is shown with length 10 cm, width 4 cm, and height 4 cm. If a cross section of the paperweight is cut diagonal to the base, which shape describes the cross section?

Answers

Answer:

Square

Step-by-step explanation:

CHECK THE ATTACHMENT FOR THE FIQURE OF THE QUESTION

✓We were given the dimension of the rectangular prism as 10cm × 4cm × 4cm,

✓The cross section of the paperweight can be cut into half to it's base. Then the new dimension will be 4cm × 4cm which is a quadrilateral.

✓ Then width= 4cm, and height=4 cm are of the same values, hence the shape it forms is a SQUARE. and also the their angles is 90° each.

I will mark you as the brainiest if you get this correct Thx so much xxx

Answers

Answer:

the answer is 50/9

other forms

5 5/9

Answer:

5 5/9

Step-by-step explanation:

8+7*6

----------

3*3

8+42

-----------

9

50

----------

9

   5

5  -

   9

William’s team won 16 games and lost 4 games. Tracey’s team won 15 games and lost 5 games. Whose team had the greater ratio of wins/losses?

Answers

Answer: William's is 16:4 and Tracey's are 15:5

Step-by-step explanation:

35
53"
X
Find the value of x. Round your answer to the nearest tenth.

Answers

Answer:

x = 26.4

Step-by-step explanation:

Here, we want to get the value of x

To get this, we are to use the appropriate trigonometric ratio

From the question, we have the opposite and the adjacent

The trigonometric ratio to use in this case is the tangent

Mathematically;

Tan 53 = 35/x

x = 35/tan 53

x = 26.37

which is 26.4

Adam has 3 coins in his pocket and they are all different from each other. Ben has 3 coins in his pocket and they are all the same as each other. Adam has half as much money as Ben.
What are the coins they each have?

Answers

Answer:

The possible coins are:

P = penny = $0.01

N = nickel = $0.05

D = dime = $0.10

Q = quarter = $0.25

H = half dollar = $0.50

We know that Adam has 3 coins in his pocket, and all of them are different, then the money that Adam has can be represented with (A + B + C)

Behn has 3 coins, and all of them are the same, then if his coin has a value X, he has a total of 3*X

We know that Adam has half as much money as Ben, this can be written as:

(A + B + C) = 3*X/2

The easier way to solve this, is to play with different values of X, and see if we can find the values of A, B and C.

For example, if X = $0.10

then:

(A + B + C) = $0.10*(3/2) = $0.15

We can find 3 different value of coins for this equation? No, we cant, so X = $0.10 is also discarded.

if x = $0.50 then:

(A + B + C) = (3/2)*$0.50 = $0.75

Here we could have:

A = $0.50

B = $0.25

then: A + B = $0.75

But we still have the coin C.

If we take X = $0.25 then:

(A + B + C) = (3/2)*$0.25 = $0.375

We could round the right part to $0.40

then the coins in the left part would be:

A = $0.25

B = $0.10

C = $0.05

A + B + C =  $0.25 + $0.10 +  $0.05 = $0.40

This is a strech, but is the only thing we can make with the given problem.

Helpppp.....................................................

Answers

Answer:

6 and 8 are yes

Step-by-step explanation:

-4 and -6 are no

Answer:

sorry for this answer

Step-by-step explanation:

Do you have PC ?

How many quarts are in 10 cups​

Answers

Answer:

There's 2.5

Step-by-step explanation:

4 cups is equal to 1 quart

So that means 8 cups is equal to 2 quarts

If we add 2 more cups then we would add 0.5 more quarts.

This means that 10 cups is 2.5 quarts.

Answer:

2.5 quarts

Step-by-step explanation:

since there are 0.25 quarts in one cup. you have to multiply 2.5 by 10. hope this helps*

Solve the system by graphing.

y=2x+4
y=-x+1

Answers

Answer:

Step-by-step explanation:

quick help pls 26 points ​

Answers

Answer: hi, i can’t see the photo

Step-by-step explanation:

Answer:

b [tex]1\frac{1}{2}[/tex]

Step-by-step explanation:

150% = 1.5

If you say this allowed you would say 1 and one-half. So if you would write it it would be [tex]1\frac{1}{2}[/tex].

Hope this helps.

May I please have brainliest? :)

PLZ HELPPPPP!!!It is due soon if someone could help that would be greattt!

Answers

Answer:

1. true

2. False

3. False

4. True

Step-by-step explanation:

Solve the system of polynomial functions given
h(x) = x^4 + 1
g(x) = x^3

Answers

Answer:

a)h=x^3 b)g=x^2

Step-by-step explanation:

Which is greater 0.9 or 0.875 ?

Answers

I’m pretty sure it’s 9.0

f(x) = -x² + x + 14
Find f (2)

Answers

Answer:

Step-by-step explanation:

f(2) = -2^2 + 2 + 14 = -4 + 2 + 14 = 12

Answer:

f(2) = 20

Step-by-step explanation:

f(x) = -x^2 + x + 14

f(2) = (2)^2 + (2) + 14

f(2) = 4 + 2 + 14

f(2) = 20

Teresa has made 124 bags of treats. Each person was able to take 2 bags home. If there were 40 people, how many extra bags were left?

Answers

Answer:

31

Step-by-step explanation:

Answer:

the answer to your question would be 44

Find the area of the trapezoid

Answers

Count the number of Little boxes there are on each side Like I did in the picture below. Then separate the triangle and the rectangle so that you can find the area of the rectangle first which you can figure out with just doing base times height. Then find the area of the triangle which is base times height divided by 2. The area of the rectangle should be 20 and the area of the triangle should be 6. Then you just add the two together so the area of a trapezoid should be 26. Now this is the area of the trapezoid not the perimeter. Perimeter and area are different things to find the perimeter you just count the outside lines of the trapezoid so it would be 5+4+5+3 Plus the long side of the triangle which you find by using Pythagorean theorem (A squared plus B squared equals C squared) I also show this in the picture below.

name each of the shapes below​

Answers

1Wht2

2The3

3Frick4

4Is5

5that6

The name of the shape in the figure is a hexagon.

What are polygons?

A polygon is often a plane figure in geometry that is enclosed by a closed chain made up of a finite number of straight-line segments that end in a loop. The spots where two of these segments meet are referred to as the polygon's vertices (plural: vertices) or corners. These segments are known as its edges or sides.

Given a shape,

the shape is a polygon,

to name a polygon first count the number of sides of the figure,

as we count there are 6 sides for the shape,

There are some specific names for the shapes according to their number of sides, like

Number of Sides Name          

3                      Triangle                    

4                 Quadrilateral

5                    Pentagon

6                     Hexagon

The name for the shape is Hexagon.

Hence the name of the figure is Hexagon.

Learn more about polygons;

https://brainly.com/question/24464711

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This is anyone who wants easy points. What comes after B in the alphabet. Just tryna help someone

Answers

Answer:

C

Step-by-step explanation:

C is the 3rd letter in the alphabet

20+ points and brainliest in exchange for a couple of minutes of your time.

Answers

Answer:

Question 10: 25 Question 9: 60

Step-by-step explanation:

Angles share a line. 180-105=75

75/3=25

----------

Is the line at the bottom of question 3 the right side or left?

7.6 cm
Diagram NOT
accurately drawn
A circle has a radius of 7.6 cm.
Work out the area of the circle.
Give your answer correct to 3 significant figures.​

Answers

Answer:

181cm²

Step-by-step explanation:

Given

Radius of a circle = 7.6cm

Area of the circle = \pi r²

Substitute

Area of the circle = 3.14(7.6)²

Area of the circle  = 3.14(57.76)

Area of the circle = 181.3664cm²

Area of the circle to 3sf is 181cm²

what is the solution of the equation y=7x-2

Answers

Answer:

1/7y and 2/7

Step-by-step explanation:

Plz help me :(:(:(:(:(:(:(:(::(((::(:(:(.(.(

Answers

Answer:

Look below!

Step-by-step explanation:

Angle A = 180-47 = 133

Angle B = 180-32-Angle A = 180-32-47 = 101

Angle D = 90-32 = 58

Angle C = 180-47-58 = 75

Hope I helped!

Answer:

A=133 ,B=15, C=75  D= 58

Step-by-step explanation:

Angle 32, d, and right angle add up to 180. So 180=32+90+x. Then x = 58 (D). The all 3 angles in the triangle add up too 180 so 180=47+58+x. x=75 (C). The 47 and a equal to 180 degrees. 180-47=133. The 133+32+x=180. x=15 (B).

A triangle has one side measuring 5 feet and two sides measuring 7 feet. What kind of
triangle is it?
equilateral
isosceles but not equilateral
scalene

Answers

Answer:

isoceles but not equilateral

Step-by-step explanation:

it has two sides that are the same length, but not all three sides are the same length

An equilateral triangle is therefore a special case of an isosceles triangle having not just two, but all three sides equal

HELP FAST! WILL GIVE BRANLIEST

Answers

Answer:

70 degrees

Step-by-step explanation:

uvt = 60 degrees bc 180-120 =60

60+ 50 = 110

180-110 degrees = 70

To Be Honest I Dont Know

I'm just here for the points :P

heheheehe

Find the value of x. Then classify the triangle by its angles.

Answers

x= 15° and it is and acute triangle

Solve using the substitution method. 3x +2y= 19 xy= 15​

Answers

Answer:

when x = 3 1/3, y = 4.5

or

when x =3 , y = 5

Step-by-step explanation:

Here, we want to solve using substitution

xy = 15

let x = 15/y

Put this into the first equation;

3(15/y) + 2y = 19

45/y + 2y = 19

Multiply through by y

45 + 2y^2 = 19y

2y^2 -19y + 45 = 0

2y^2 - 10y - 9y + 45 = 0

2y(y-5) -9(y-5) = 0

(2y-9)(y-5) = 0

2y-9 = 0

or y-5 = 0

2y = 9 or y = 5

y = 9/2 or y = 5

y = 4.5 or y = 5

Recall;

x = 15/y

x = 15/4.5 or x = 15/5

x = 3 1/3 or x = 3

T= 3x + 4y
Toe ons
(a) Work out the value of I when x = 5 and y=-7

Answers

Note: Consider the dependent variable is T instead of I, and we need to find the value of T when x=5 and y=-7.

Given:

[tex]T=3x+4y[/tex]

To find:

The value of T when x=5 and y=-7.

Solution:

We have,

[tex]T=3x+4y[/tex]

Putting x=5 and y=-7, we get

[tex]T=3(5)+4(-7)[/tex]

[tex]T=15-28[/tex]

[tex]T=-13[/tex]

Therefore, the value of T is -13 when x=5 and y=-7.

Please help me asap!!!!!!! Please

Answers

Answer:

the cube is  bc 6 times 5 is 30 and the triangle is 2 because its the same length as the height

Step-by-step explanation:

Help plz i'll mark brainliest

Answers

Answer:

C

Step-by-step explanation:

A 10-meter ladder leans against the wall, it is 5 meters from the base of the wall. How high, h, does the ladder reach to the nearest tenth of a meter?

Answers

Answer:

did you figure out the answer because I need it please

Find the value x

please help

Answers

Answer:

Step-by-step explanation:

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