40 points!! please do not plagiarize, I need this to be original :D
Erik is performing a marble experiment in math class. His teacher places an equal number of black, red, and white marbles in a bag. Then, Erik randomly takes out a marble, records the result, and puts the marble back in the bag. Each of the first four times Erik takes out a marble, he gets a black marble.

A. What is the theoretical probability of Erik picking a black marble next time? Based on Erik's results, what is the experimental probability of Erik picking a black marble next time?
B. Explain the difference between the two probabilities you found in part A.
C. What is the theoretical probability and likelihood of getting four black marbles in a row?

Answers

Answer 1

Answer:

Every one of us would have encountered multiple situations in life where we had to take a chance or risk. Depending on the situation, it can be predicted up to a certain extent if a particular event is going to take place or not. This chance of occurrence of a particular event is what we study in probability. In our everyday life, we are more accustomed to the word ‘chance’ as compared to the word ‘probability’. Since Mathematics is all about quantifying things, the theory of probability basically quantifies these chances of occurrence or non-occurrence of certain events. In this article, we are going to discuss what is probability and its two different types of approaches with examples.


Related Questions

Find the rate in mountains per month

Answers

4 mountains a month

4 Mountains a month

What is the difference between a sample and a population?
a. Populations only consider a portion of the sample being studied. This answer is incorrect.
b. Samples are generally much larger than populations.
c. Populations do not always represent the entire group of people in question.
d. Samples only consider a portion of the population being studied.

Answers

It’s answer D!!!!!!!!!!!

Dont send me pdfs or links please answer correctly for brainliest

Determine whether each sample is unbiased with complete sentences.

The population is every pet at an animal shelter.

A. Sample: Every dog is used as the sample.

B. Sample: The animals are grouped by species (dog, cat, rabbit, etc.), and five animals from each group are randomly selected to determine their age.

C. Sample: Every animal's name is dropped into a container, and 15 names are pulled out of it.

Answers

Answer:

C. Sample: Every animal's name is dropped into a container, and 15 names are pulled out of it.

Step-by-step explanation:

mark this brainlest please

Use the picture where it says a, b, c, d those are the steps

Answers

Step-by-step explanation:

Direction: Opens down

Focus: ( 0,-0.1)

Axis of Symmerty: X=0

Directix: y=0.1

Type [tex]y=-2.5xx^{2}[/tex]  on a algebra calcator and it will show you the graph and the eqaution.

Hope this helps!

find the gcf of 14,35,84

Answers

Answer:

7

Step-by-step explanation:

hurry im running out of time
Which angles shown in the drawing are supplementary?

https://dw6y82u65ww8h.cloudfront.net/organisations/328/f8eb1048-7c08-416a-bf24-6e5eeb072548/img_intersecting_lines_d.gif


∠EBA and ∠DBC
∠ABD and ∠ABE
∠CBE and ∠ABD
∠EBC and ∠ABE

Answers

Answer:

it is ∠EBA and ∠DBC i think

Step-by-step explanation:

ok last one help meee

Answers

c c c c58 58 58 58 57
Answer is c. 58, all the rest are wrong

HELP MEEEEEEEEEEEeeeeeee

Answers

The correct answer is 40

can somebody help me please

Answers

A. The scale used to make the model was 125 meters =1 foot. 525 divided by 4.2 equals 125 meters.

B. The model is 84 sheets of plywood tall.
4.2 feet = 50.4 meters 50.4 meters divided by 0.6 equals 84 sheets.

Can someone help me?

My teacher said to put in simplisit form. and not to estimate.
I will give brainlisit !!!

Answers

Answer:

4. .88

5. 17/9

6. 67/12

7. 47/56

8. 209/45 or 4 29/45, 4.64

9. 143/30

Step-by-step explanation:

What is the probability of choosing a blue or green marble?

There’s 5 green, 6 blue, and 9 red marbles.

A. 5/11
B.11/20
C. 6/11
D. 5/20
E. 6/20

Answers

Answer:

B,

Step-by-step explanation:

because you can have a great day

It’s b definitely
Because I answerd that question before and it was b so yeah:)

Can I get some help with this question plzzz

Answers

All the possible combinations are
1-1 2-1 3-1 4-1 5-1 6-1
1-2. 2-2 3-2 4-2. 5-2. 6-2
1-3 2-3. 3-3. 4-3. 5-3. 6-3
1-4. 2-4. 3-4. 4-4. 5-4. 6-4
1-5. 2-5. 3-5. 4-5. 5-5. 6-5
1-6. 2-6. 3-6. 4-6. 5-6. 6-6

What is the total for each roll?

2. 3. 4. 5. 6. 7.
3. 4. 5. 6. 7. 8
4. 5. 6. 7. 8. 9
5. 6. 7. 8. 9. 10.
6. 7. 8. 9. 10. 11.
7. 8. 9. 10. 11. 12

What roll occurs most often?

>>>>>>7<<<<<

7 occurs in 6 out of 36 possible outcomes

If you have 2+2^2 and/or 5^2s when s=14 how much will you have???

Answers

Step-by-step explanation:

2+2^2=6

5^2(14)=25(14)=350

350+6=356

Hope that helps :)lol

Answer:

356

Step-by-step explanation:

2+2^2=6

5^2(14)=25(14)=350

350+6=356

To graph the point (2, 10) on the coordinate plane, start at the origin. Move 2 units _______ and 10 units ________ . 40 points

Answers

Answer:

2 units to the right and 10 units up

Step-by-step explanation:

What is the sales tax for a purchase of $2,500?

Answers

Answer:

precentage?

Step-by-step explanation:

Answer:

I NEED THE PERCENTAGE.

Step-by-step explanation:

.

Please Show work and explain.

1. The enrollment in dance class is currently 80 students and is increasing at a rate of 4 students per term. The enrollment in choir is 120 students and is decreasing at a rate of 6 students per term. After how many terms will the number of students in dance equal the number of students in choir? How many students will be in each class?

2. Horizon Phone Company charges $15 a month plus 10 cents per text. G-Mobile charges a flat rate of $55 per month with unlimited texting. At how many texts would the two plans cost the same? Which plan is the better deal if you send 200 texts per month?

Answers

Answer:

1. 4 terms

2a. 400 texts

2b. Horizon phone company

Step-by-step explanation:

1. 80 + 4 x 4 = 96

120 - 6 - 6 - 6 - 6 = 96

2a. 55-15=40x10=400

2b. You need 400 texts to eaven out for g mobile.

Hunter has x CDs. Hunter has 3 more CDs than Evan. They both have 13 discs in total. How many CDs does Evan have?

Answers

Answer: 10

Step-by-step explanation:

Hunter has 16 cds since he already had three more than him

Plsss help me with this if you know how to solve this plsss help me with it thank you also remember NO LINKS AND NO DOING IT JUST FOR POINTS OR YOUR ANSWER WILL BE REPORTED and if you have a question plss ask me in the "ask fluttershyponybutter about this question" section

Answers

Answer:

1: You may name either C/H or D/G

2: You can say A/G, B/H, D/E, or C/F

3: You can say either A/E or B/F

4: 102*

5: 47*

6: 43*

7: 35*

Step-by-step explanation:

1. Alternate Interior Angles are angles made and formed when two parallel or non-parallel lines are intersected by a transversal

2. Corresponding Angles are angles that are in the same position relative to lines intersected by a transversal

3. Alternate Exterior Angles are a pair of angles on the outer side of each of those two lines but on opposite sides of the transversal

4. Using the Corresponding Angle formula, we know that angle x is equivalent to the corresponding angle above it

5. Using the Alternate Exterior Angle formula, we know that the angle y is equal to the 47* angle

6. Supplementary Angles are two angles whose measures add up to 180 degrees.

7. Using the Alternate Exterior Angle formula, we know that the angle w is equal to the 35* angle

Answer:

im big dmb

Step-by-step explanation:

please help me with this math problem, i am stuck and i don't get it, give the correct answer and explain how you got it, please and thank you! <3 i will give the brainiest if it is correct and i will also give a thanks!

Answers

that’s kinda easy it would be C, it goes right on the x axis by 5 and goes up on the y axis by 5 lol

What is
2 to the power of -1
multiplied by 1
multiplied by 3 to the power of 4

Answers

Answer:

81/5 or 40.5 or 40 1/2

Step-by-step explanation:

2 to the power of -1  

= would be 0.5

0.5 x 1

= is just 0.5

3 to the power of 4

= would be 81

0.5 x 81

= would be 40.5

I hope this helps :D

40.5


2 to the power of -1 is 0.5
3 tho the power of 4 is 81
Then u do 0.5 x 1 x 81 = 40.5

Which phrase is a description of 2m+7 ?
A- 7 more than 2 times m
B- 2 more than 7 times m
C- 2 times the sum of 7 and m
D- 7 times the sum of 2 and m

Please help

Answers

A- 7 more than 2 times m

The bowling alley charges $75.00 to reserve the location, and then $8.00 per person. Which expression represents the total cost for any number of people n?

Answers

Answer:

75+8n

Step-by-step explanation:

$75 is the constant because that is the amount of money only paid once. $8 is the coefficient because it is multipled by the variable n. The variable is the amount of people going to the bowling alley.

Therefore, to determine the total cost, you need add $75 to the product of 8 and the number of people coming.

Pls help
This partial circle has a radius of 11 inches.

What is the area of this figure?

Use 3.14 pi.

Enter your answer as a decimal in the box. Round your answer to the nearest hundredth.
in²

Answers

To find area of a circle it’s radius x radius x pi so 380

Find the area of the shape. Each unit square = 5 meters.

Answers

Answer:

The area [I'm pretty sure] is 600 meters squared

Step-by-step explanation:

25 x 24 = 600

Your answer is 600^2

ONE QUESTION just one. Help

Answers

Answer:

0.015625

Step-by-step explanation:

Answer:

(1/64) or 0.015625

Step-by-step explanation:

Pretty simple, you just have to square the numerator and denominator. 1 squared is 1 and 8 squared is 64.

Help pls. I'll give brainliest.

Answers

Answer:

160 cm cubed.

Step-by-step explanation:

160 cm



..................................

How long does it take an account with a principal of $600 to earn $90 in interest at a simple annual interest rate of 5%

Answers

Answer:

3 yrs

Step-by-step explanation:

1st year=600*1.05=630

2nd year=630*1.05=661.5

3rd year=661.5*1.05=794.57

Please help me

I’ll give brainliest please help

Answers

here’s the answer!!
It would be A, real, integer, whole, and rational :)

71.5 71.5 What is the measure of ∠T

Answers

Answer:

37

Step-by-step explanation:

It is 37 if you’re wondering

MATH SMARTIES I WILL GIVE BRAINLIEST PLEASE GIVE EXPLINATION THE HWERK IS PERCENTS

Answers

Answer:

a. 28

b. 6.5

c. 30

Step-by-step explanation:

1% = 80÷100

35% = 0.8×35

1% = 0.65

0.65 × 10 = 6.5

1% = 0.5

60% = 0.5×60

Answer:

28

6.5

30

another way you can get these answers is by cross multiplying. In order to do that you need to identify the percent, the whole (of), and the part (is). In identifying the whole and the part, look for the word is, and the word of. The number that is associated with is either the part or the whole. (There is 6 out of 80, what is the percentage?) always set the percentage out of a hundred.

So from there we set up the proportion:

ONE

(we don't know the part in any of them)

X/80=35/100 (cross multiply by putting the numbers on top of each other for the fractions)

TWO

X/65=10/100

THREE

X/50=60/100

Hope this helps, have a good day and remember to be tiger fierce!! :) (also, sorry that it is late.)

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