The following two-way table shows the data for the students of two different grades in a school:


Member of School Band Not Member of School Band Total
Grade 7
10
8
18
Grade 8
10
2
12
Total
20
10
30


Based on the relative row frequency, the students of which grade are more likely to be members of the school band?
Grade 7
Grade 8
The students of both grades are equally likely to be members of the school band
No conclusion can be drawn about the chances of a student being a member of the school band

Answers

Answer 1
The correct answer is Grade 7. In Grade 7, 20/22 students were in the science club, while in Grade 8, 20/28 students were in science club. If we simplify these fractions and get a least common denominator, we can compare them to see which is larger.

Grade 7 = 10/11
Grade 8 = 5/7

Now that we've simplified the fractions, let's find a common denominator for both. In this case, I'm going to use 77.

Grade 7 = 70/77
Grade 8 = 55/77

Since 70 is greater than 55, it is more likely that the Grade 7 students will be in the science club.
Answer 2

It is more likely that the Grade 7 pupils will be in the science club because 70 is more than 55.

What is a conditional relative frequency?

It is defined as the frequency that can be evaluated by the two-way frequency table. Usually, we can obtain this frequency by dividing the frequency that is not in the total frequency cell by the total frequency.

As we can see in the table:

Grade 7 = 10/11

Grade 8 = 5/7

Or after making the common denominator:

Grade 7 = 70/77

Grade 8 = 55/77

Thus, it is more likely that the Grade 7 pupils will be in the science club because 70 is more than 55.

Learn more about the conditional relative frequency here:

brainly.com/question/8358304

#SPJ2


Related Questions

Please help me with this question !!!!!!!!!!

Answers

Answer:

1) 7/8  

2) 0. 9

3) 88%

Step-by-step explanation:

total CDs =  2 + 9 +5 = 16

probability of Comedy is 2 out of the total 16

= 2/16

probability of not picking one would be 1 - 2/16 = 14/16 = 7/8

7 divided by 8 = 0.875   which rounds to 0.9

0.875 x 100 gives the percentage of 87.5% which rounds to 88%

I can help!

1. 14/16 , but that reduced is 7/8

This is because in total, there are 16 cds. 14 of them arent comedy so therefore, 14/16 cds arent comedy.

2. 0.875 - you get this by doing either 14 divided by 16 or 7 divided by 8.

3. 87.5%, you would do 0.875 times 100 which gives you the percentage.

What is 20% off of 113.83?

Answers

Answer:

91.064

Step-by-step explanation:

Answer:

22.766

Step-by-step explanation:

113.83 divided by 5 =22.766

Mr. Morris is going to save money and replace his sailboat's mainsail himself. He must determine the area of the mainsail in order to buy the correct amount of material. Calculate the area of the parallelogram to determine how much material should be purchased. Be sure to explain how to decompose this shape into rectangles and triangles. Describe their dimensions and show your work.

Answers

Welll....from the diagram, you can see you have two triangles (one on each side)

area of triangle = 1/2 base*height = 1/2 * 2 x 15 = 15ft2 each then you are left with a rectangle 13 ft x 15= 195 ft2

195+15+15=

225 ft2 <----- ANSWER

The area of the parallelogram is equal to 300 square feet.

Given the following data:

Width of parallelogram = 20 feet.Base of triangle = 4 feet.Height of triangle = 15 feet.

To calculate the area of the parallelogram:

First of all, we would determine the area of the triangles.

Note: There are two (2) triangles that can be cut-off the given parallelogram.

The formula for the area of a triangle.

Mathematically, the area of the triangle is given by the formula:

[tex]Area=\frac{1}{2} \times base \times height\\\\Area=\frac{1}{2} \times 4 \times 15\\\\Area=2 \times 15[/tex]

Area = 30 [tex]ft^2[/tex]

For the two (2) triangles:

[tex]Area = 2 \times 30[/tex]

Area = 60 [tex]ft^2[/tex]

For the rectangle left:

Length = 15 ft.Width = 20 - 4 = 16 ft.

[tex]Area = length \times width\\\\Area = 15 \times 16[/tex]

Area = 240 [tex]ft^2[/tex]

Now, we can calculate the area of the parallelogram:

[tex]Area \;of \;parallelogram = 60 + 240[/tex]

Area of parallelogram = 300 [tex]ft^2[/tex]

Read more on area of parallelogram here: https://brainly.com/question/21917592

What is 12 1/2% less than $80? I hope you're havin' a good day.

Answers

Answer:

10

12.5% less than 80 = 10

Step-by-step explanation:

Step 1: Our output value is 80.

Step 2: We represent the unknown value with x.

Step 3: From step 1 above, 80=100%

Step 4: Similarly, x=12.5%

Answer:

70

Step-by-step explanation:

To answer this question, we have to find out what is 12 1/2% of 80 and subtract it from 80. 12 1/2% is the same as 0.125, or 1/8. 1/8 of 80 is

1/8 * 80 = 10, 80 - 10 = 70

help match each up!!!!!

Answers

Answer:

The range is the difference from the biggest number to the smallest number

Step-by-step explanation:

Answer:

Number of plants: 22

Minimum height: 49 inches

Maximum height: 66 inches

Range of plants: 66-49 = 17

Hope this helps!

Use the permutation formula to solve a problem when n = 8 and r = 4.



A. 420
B. 1,680
C. 6,720
D. 26,880

Answers

Answer:

1680

Step-by-step explanation:

(,)=(8,4)

[tex]=\frac{8!}{(8-4)!}[/tex]

=1,680

the answer is B which is 1,689

An image shows a square prism with a height of 8 yd.
The prism has a base area of

14 yd.^2

What is the volume of the prism?

A. 22 yd.^2

B. 112 yd.^3

C. 22 yd.^3

D. 112 yd.^2

Answers

Answer:

a

Step-by-step explanation:

i just took the test

Is 456,602 divisible by 5?

Answers

Answer:

it is

Step-by-step explanation:

456,602 divided by 5=91,320.4

Module 03: Project Option 1
Instructions
Here are the low temperatures (in degrees Fahrenheit) for one week in Montreal, Canada:
-3.5 ℉
5 ℉
1.5 ℉
-0.5 ℉
-2℉,
2.5℉
-4 ℉

Part 1: Weather Analysis
1. Plot and label the temperatures on a number line. You can create it by using a drawing program, by drawing it by hand and sending in a picture, or by describing in detail how the completed number line should look.

2. Compare the weather on two different days using an inequality. Then see if their comparisons change by finding the absolute value of each.
Day 1: Day 2: Comparison of Day 1 and Day 2: ____ < _____ or _____ > _______ Comparison of days with absolute value: ____ < _____ or _____ > _______
3. Which temperature during the week is the closest to 0? Explain how you decided this using absolute value.
4. Which temperature during th

Answers

Answer:

1, I have attached the number line.

2, I have provided two examples. One shows a different any quality symbol, and the other one shows the same based on absolute values.

3, you can see using the number line that -0.5 is the closest to zero.

guys i am on my knees rn

Answers

Answer:

Look at the image.

Step-by-step explanation:

Answer:

3 inches = 9 for area

7 units = 14 for area

100 cm = 10000 for area

40 inches = 1600 for area

x unites = id.k

next page ----------------------------------

81 square inches = 9 for side length

4/25 = 0.39 - i think

1.96

id.k

------------------------------------------------

uh unfriend hiim or block him or smthn lol

Step-by-step explanation:

PLEASE HELP ME!!!! THIS IS TIMED!!! PLEASE HELP!!!!!!!

Answers

Answer: 17

Step-by-step explanation:The other side is the same length. So its 17 :)

Answer:

18.3 = The third side

Step-by-step explanation:

Using Pythagorean Theorem; since the triangle is a right angled triangle.

Pythagorean Theorem states: A² + B² = C² (Where C is the hypotenuse, the line on the triangle opposite to the labeled right angle of the triangle, A and B would be the other 2 sides).

=> A² + B² = C²

=> 17² + B² = 25²

=> 289 + B² = 625

=> B² = 625 - 289

=> B² = 336

=> [tex]\sqrt{B^2}[/tex] = [tex]\sqrt{336}[/tex]

=> B =  [tex]\sqrt{336}[/tex]

=> B = 18.3

Hope this helps!

Myles said that 5 x 0.13 is 6.5. Do you agree? Explain.

Brainliest if correct!

Answers

No he is not, 10*0.13=1.3, so 5*0.13=0.65

Answer:

no do not agree

Step-by-step explanation:

No because 5 x 0.13 does not equal 6.5 it equals 0.65

Math: Write a proportion to find 32% of 92

Answers

32/92=

32 ÷ 92 =


Explaining;
32/92 is the proportion answer

Joy earned 13 points in her first round and -21 points in her second turn. What was her score after 2 turns?

Answers

Answer:

-8

Step-by-step explanation:

Hope this helps!

Select the expression equivalent to:

(3x + 2) + (-6x + 3)

Answers

Answer:

I don't really know what you mean but heres a go

x=-5/9

Step-by-step explanation:

PLEASE HELP ME ASAP!!!!!!!!!!!!!! THE QUESTION IS IN THE PHOTO !!!!!!!!

Answers

Answer:

V=552.6cm

Step-by-step explanation:

Start with the formula: V=pi•R^2•h

Then plug in the numbers:

V=3.14•4^2•11

Square 4

V=3.14•16•11

Answer: V=552.6

Answer:

um i dont know

someone halp them

Step-by-step explanation:

7. Which of the following integers is between √42 and √50?
a. 7
b. 6
c. 43
d. 40
e. 8

Answers

Answer:

7

Step-by-step explanation:

Answer:

7

Step-by-step explanation:

√42 is equal to 6.480740698

√50 is equal to 7.071067812

7 is in between these 2 numbers

Which expression is equivalent to 9 x 9 x 9 x 9?

Group of answer choices

4 to the ninth power

4(9)

9(4)

9 to the 4th power

Answers

Answer: 9 to the power of 4

Step-by-step explanation:

Answer:

9 to the 4th power

Step-by-step explanation:

power is how many times that number is multiplied by itself.

example: 2 to the 3rd power

2 x 2 x 2

Daniel has drawn a triangle with sides of length 5cm, 5cm and 8cm.What type of triangle has he drawn? * 1 point Isosceles Right-angled Equilateral Scalene

Answers

Answer:

Right angled

Step-by-step explanation:

Answer: Isosceles triangle.

Tell me everything I need to know and please work out the problems

Answers

Answer:

You basically need to solve for m

I can try to solve it for you:

if you  Multiply both sides by 3/2.

you will get 3/8 as your answer

sooooo your answer is m=3/8

last one for real this timee

Answers

Answer:15

Step-by-step explanation:jaufnenfiebd

c²=a²+b²

c²=10²+42²

c²=100+1764

c²=1864

c=√1864

c=43.17

c=43.2

Add to the height of the bottom part of the tree.

43.2+10=53.2

∴The total height of the tree before it was struck down was 53.2ft.

Im dum.b and dont know this D:

Answers

Same here I get u have a good day
To calculate the area of a composite shape you must divide the shape into rectangles, triangles or other shapes you can find the area of and then add the areas back together.

You may have to calculate missing lengths before finding the area of some of the shapes.

(sorry bout the other one I forgot to put the picture and it wouldn't let me delete)
Is the answer 4?
I need someone to double check

Answers

Answer:

The correct answer should be 5

Step-by-step explanation:

start at a point where the line passes through the vertex of the small grid box given and count how many units u need to go up and right to reach to the next point where the line passes in a similar way, since you need to find the rise, just count how many units u need to go up. The answer would be 5

Hope this helps!

45. Which of the following notations represents the number 0.00432?

A. -3 E4.32
B. (4.32)^-3
C. 4.32E(3)
D. 4.32E (-2)
E. 4.32E (-4)
F. 4.32 (-3)

Answers

Answer:

Step-by-step explanation:

c

anwser: C


step by step explanation:

Please help and thank you

Answers

The hexagonal prism has a an equation of volume = base * height.

Since we already know the base is 8 sq feet, we can plug in some values and use x as a missing value

40 = 8 * x
Divide by 8
5 = x

X is equal to 5.

pls plsplsplssplslslpslpslplpslslpslps

Answers

Answer:

25

Step-by-step explanation:

10 x 5= 50/2 = 25

25 because 10x5 is 50 divided by 2 is 25

A group of 12 students participated in a dance competition. Their scores are in the image attached

Would a dot plot or a histogram best represent the data presented here? Why?
Histogram, because a large number of scores are reported as ranges
Histogram, because a small number of scores are reported individually
Dot plot, because a large number of scores are reported as ranges
Dot plot, because a small number of scores are reported individually

Answers

dot plot because a small number of scores are reported individually

Answer:

Dot plot, because a small number of scores are reported individually

Step-by-step explanation:

Solve inequality ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍

Answers

Answer:

x < 64

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction

Left to Right  

Equality Properties

Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtraction Property of Equality

Algebra I

Terms/Coefficients

Step-by-step explanation:

Step 1: Define

Identify

[tex]\displaystyle \frac{x}{8} < 8[/tex]

Step 2: Solve for x

[Multiplication Property of Equality] Multiply 8 on both sides:                      [tex]\displaystyle x < 64[/tex]

Here we see that any number x less than 64 would work as a solution to the inequality.

X=64

BIDMAS
B= BRACKETS
I=INDICES
D=DIVISION
M=MULTIPLICATION
A=ADDITION
S=SUBTRACTION

50 POINTS PLZ HELP I NEED IT IN 30 MINUTES!!!!!!!! find the smallest 2 digit number that is 36 more than the number with its digits reversed

Answers

Answer:

37

Step-by-step explanation:

PLZ HELP ASAP WILL MARK BRAINLIEST

Answers

Answer:

I’m so sry but can‘t understand it has to be 4/15 7/15 or 2/3.

Step-by-step explanation:

☹️

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