Main idea: Experimental and theoretical probability
1. Fill in the blanks to compare experimental and theoretical probability.
If you know all of the possible outcomes of a trial, and all outcomes are equally likely, you can calculate the _______________ probability of a certain event.
The theorical probability of a coin landing on heads is _____%.
You can estimate probability by doing an _______________.
Experimental probability is also called _______________ probability.
2. Fill in the blanks to describe using probability experiments to estimate an unknown probability.
To estimate an unknown probability, _______________ the number of successful trials by the _________________________ of trials.
The more trials you perform, the more _______________ the _______________ tends to be.
3. Complete the steps to show how to estimate probabilities by repeating trials.
4. Anna does not know what colors of blocks are in a bag. She selects a block out of the bag, records its color, and replaces it in the bag. She repeats the process for a total of 50 trials, and then summarizes her data. Find P(yellow), the probability of choosing a yellow block.
Color
Green
Blue
Yellow
Number
18
22
10
Identify successful outcomes as choosing a _______________ block.
Of the 50 trials, _____ were successes.
Based on the data, the estimated probability of choosing yellow is _____. In simplest form, P(yellow) = _____.
Main idea: Conducting experiments
5. Complete the steps to estimate probabilities based on experimental data for this problem.
Marci made a 10-sided object and wrote a number from 0 to 9 on each face. She is not sure all the sides are equal in size, so she doesn't know the probability of rolling each number.
The sample space:
This tally table shows the data Marci collected from 10 rolls of her 10-sided object. Each mark represents one roll of that number. Fill in the estimated probability for each event based on the data after 10 rolls.
Estimated probabilities after 10 rolls
Rolled a:
0
1
2
3
4
5
6
7
8
9
Number of times
Probability
This table shows the data Marci collected from 100 rolls of her 10-sided object. Fill in the estimated probability for each event based on the data after 100 rolls.
Estimated probabilities after 100 rolls
Rolled a:
0
1
2
3
4
5
6
7
8
9
Number of times
6
14
7
13
9
11
8
12
11
9
Probability
Main idea: Estimating probability with relative frequency
6. Barry made four out of five free throws. Complete the table and answer the questions about the relative frequency of free throws made.
Free throws made
Free throws tried
Relative frequency
What is the estimated probability that Barry will make his next free throw? How likely is he to make the shot?
7. Complete the sentences to describe using relative frequency tables to estimate probability.
The probability of an event can be estimated by finding the ____________________ of the event.
The relative frequency is the number of times a(n) _______________ occurs divided by the number of observations.
Main idea: Using probability to approximate frequency
8. Tamara and her sister play a game using a spinner. A typical game involves 136 spins. The probability of spinning each color is . About how many times should Tamara expect the spinner to land on yellow? Let x represent the number of times the spinner lands on yellow.
Answers
1b.) 50%
1c.) you can divide the number of events by the possible outcomes
1d.) Empirical Probability
2a.) divide, number
2b.) i’m not sure
the rest i’m not sure
Related Questions
Solve the system of equations by substitution. show all the steps needed to solve.
2x+3y=19
y=9
3x+9y=42
y=2x
2x + 5y=22
x=3y
x=2y
3x + 2y=2
x+3y=11
x+4y=14
Answers
2x+27=19
-27 -27
2x=-8
2x/2=-8/2
x=-4
y=9
3x+9(2x)=42
3x+18x=42
21x=42
21x/21=42/21
x=2
y=2(2)
y=4
x=2
y=4
2(3y)+5y=22
6y+5y=22
11y=22
11y/11=22/11
y=2
x=3(2)
x=6
y=2
3(2y)+2y=2
6y+2y=2
8y=2
8y/8=2/8
y=0.25 or 1/4
x=2(0.25)
x=0.5 or 1/2
x=0.5 or 1/2
y=0.25 or 1/4
x+3y=11
-(x+4y=14)
-1y=-3
-1y/-1=-3/-1
y=3
x+3(3)=11
x+9=11
-9 -9
x=2
x=2
y=3
NEED HELO FAST!
Which of the following statements is true for 5.78?
A) It's rational because 5.78 = 526/2 33.
B) It's irrational because 5.78 = 5.787878.
C) It's irrational because 5.78= 5.787878.
D) It's rational because 5.78 = 5.787878.
Answers
its rational - 5.78 = 5.787878.
D.
explanation:
We have been given a number 5.78. We are asked to choose the correct statement which shows that 5.78 is a rational number.
Upon looking at our given choices, we can see that only option A is the correct choice as it has repeating digits (78) after decimal.
We know that a number with repeating decimals can be written as a fraction, therefore, option D is the correct choice.
Answer:
hello
Step-by-step explanation:
its D
Find the volume of the rectangular pyramid. If needed round two decimal places
Answers
Answer:
126
Step-by-step explanation:
V = lwh/3 = 7*6*9/3 = 126
If your grade is 79% now and you get a 70% on a quiz,what is your grade now?
Answers
Money Tracker (Additional Instructions in Photo)
Take a screenshot of the following photo and !!SHOW ALL WORK!!
Please help, this assignment will boost my grade up to an A+!
(I have a lot more I need help with too! If you can help. It’s all math)
Answers
Answer:
You have to add all the money up then subtract it by the following money you earned.
Step-by-step explanation:
45.35+45.25= 90.5
1.39x75=104.25
0.68x8=5.44
68.72x2=137.44
1.85x37=68.45
0.13x900=117
52.85x12=634.2
52.85x2=105.7
19.49x3=58.47
2750-1321.45=1428.55
(the number 1321.45 came from everything added together, which i then subtracted from 2750 to get 1428.55 as your remaining balance.
Type a digit that makes this statement true.
32,324,44
is divisible by 6.
Submit
Answers
Answer:
444
Step-by-step explanation:
444 is answer. it is very easy. 444/6= 74
5/6x + 2/3x + = 7
x=
Answers
Use cymath.com for sure.
When I typed your question there it said the simplified answer was, x = 0
Answer is x=0
pls help this is due tomorrow morning and it's 1 am I'll mark brainliest 15 points each
Answers
Answer:
Let [tex]\pi[/tex] represent 3.14
SA = 2[tex]\pi[/tex]r^2 + 2[tex]\pi[/tex]rh
SA = 2[tex]\pi[/tex](5)^2 + 2[tex]\pi[/tex](5)(12)
SA = 2[tex]\pi[/tex](25) + 2[tex]\pi[/tex](60)
SA = 50[tex]\pi[/tex] + 120[tex]\pi[/tex]
SA = 50(3.14) + 120(3.14)
SA = 157 + 376.8
SA = 533.8inch^2
Therefore the surface area of the cylinder is 533.8 square inches.
Answer: Let represent 3.14SA = 2r^2 + 2rhSA = 2(5)^2 + 2(5)(12)SA = 2(25) + 2(60)SA = 50 + 120SA = 50(3.14) + 120(3.14)SA = 157 + 376.8SA = 533.8inch^2
I can't figure this out. I'm having a really bad day and I'm not functioning correctly.
Please help!!
Answers
Answer:
√689 ≈ 26.2 leagues
Step-by-step explanation:
For the purpose of calculating the distance between the marked points, the line is considered to be the hypotenuse of a right triangle. The horizontal distance between the points is one leg of the triangle, and the vertical distance is the other leg. The Pythagorean theorem relates these distances.
Pythagorean relationThe Pythagorean theorem relates right triangle sides 'a' and 'b' to hypotenuse 'c' with the formula ...
c² = a² +b²
Taking the square root, we have an expression for 'c' in terms of 'a' and 'b'.
c = √(a² +b²)
Application to distanceThe horizontal distance between the points is the difference of their x-coordinates:
a = x2 -x1 = 2 -(-18) = 20
The vertical distance between the points is the difference of their y-coordinates:
b = y2 -y1 = -10 -7 = -17
When we square these numbers, we find their signs to be irrelevant.
c = √(a² +b²) = √(20² +(-17)²) = √(400 +289) = √689
c ≈ 26.249
The distance between the given points is about 26.2 leagues.
The corner store sells a super-size granola bar for $4. How much do four super-size granola bars cost?
Answers
Answer:
The answer would be 16
Step-by-step explanation:
4x4 =16
Hope this helps!
Answer:
Sixteen dollars
Step-by-step explanation:
you multiply four times four since that's the amount of granola you want times the cost that would be sixteen
Whoever helps gets brainliest!
Answers
4 miles per hour
Step-by-step explanation:Unit rate is the rate of something per 1 unit. In other words, the unit rate is x units per 1 unit. In this situation, the unit rate is how many miles Hassan walks in 1 hour.
Proportion
First, to find the rate of anything we can set up a proportion. In the question, the rate is described as miles per hour, so the miles will be the numerator and the hours will be the denominator.
This creates the proportion [tex]\frac{12miles}{3hours}[/tex]So, the rate we are given is 12/3.
Unit Rate
To find the unit rate we need to make the denominator equal to 1. To do this, divide both the numerator and denominator by 3.
12/3 equals 43/3 equals 1So, this means that the new proportion is 4/1. Next, we can add our units, which means that Hassan walks 4 miles per 1 hour.
Graph
Now we can resize the bar graph. The purple bar should be set to 4 because this represents the miles. Then, the green bar should be set to 1 because it represents the hours.
which is faster: drive a car at a rate of 40 kilometers per hour or drive a car at a rate of 15 meters per second
Answers
Answer:
Step-by-step explanation:
Let's convert one of these measurements so that both measurements have the same units. 15 m/sec is equivalent to 0.015 km/sec, which in turn is equivalent to
0.015 km 3600 sec
--------- -------- ----------------- = 54 km/hr
1 sec 1 hr
This latter result (54 km/hr) is faster than (40 km/hr).
dory is buying a square shaped canvas with an area 144 squared inches. which shows the correct steps she should take if she wants to find out the side lengthes of the canvas
Answers
Answer:
sqrt 144
Step-by-step explanation:
formula for area of a square us s^2,
s^2 = 144
square root both sides
Someone help its math 50 points
Answers
Answer:
i think it is (-1,0)
Step-by-step explanation:
if you graphed the points this option makes the most sense
Explanation: The angles that would make up the top left and right corners of the parallelogram would be (4,0) and (2,0). Because (0, -2) is the bottom left angle, to make this shape a full parallelogram, the y-coordinate of the other angle would have to also be -2, and it would have to be to the right of the origin so the figure does not look sloppy. To add on to this, none of the given x-coordinates are negative, so the fourth point should not have a negative x-coordinate. That would instantly get rid of A, B, and C. Therefore, your answer would be D, or (0, -2).
In ABC, mB is 3 times mA and mC is 4 degrees less than 6 times mA. What equation is used to solve for the variable x? Find the measure of each angle.
Answers
Answer:
mark me brainlist please
Can you help me please? I need this ASAP
Answers
Answer:
Top left and right
Step-by-step explanation:
simply multiply the first number of Y with X
Hope this helps
ill give brainly and 30 points
Answers
Answer:
D) 22x + 99
Step-by-step explanation:
9 (2x+9) + 2(2x + 9)
18x + 81 + 4x + 18
22x + 81 + 18
22x + 99
18x+81+2(2x+9)=
18x+81+4x+18=
(18+4)x+(81+18)=
22x+99
Can someone help me pls its math and due today
Answers
Because in order for it to be square all sides must be the same length
Answer:
It’s 1, 7 bc that’ll finish the square
A spherical water balloon is filled such that it has a diameter of 9 inches. Water is then released from the balloon until it has a diameter of 7.2 inches. What volume of water was released from the balloon?
Answers
Answer:
5
Step-by-step explanation:
seven point two and 9 imches
pls help me outttttt
Answers
Melanie goes to a shelter to buy a dog. She has settled on to two dogs, An Alsatian and a bulldog. To decide them, she plans to flip a coin. Before she does, she flips the coin 50 times to check for fairness of the model. Her results are shown in the table.
Coin Toss Result:
Times Result Occurred
Heads : 24
Tails : 26
The relative frequency of landing on heads is [ ]. The relative frequency of landing on tails is [ ].
Please answer ASAP.
Answers
Find the area of the clock
Use 3.14 for pi
Answers
Area = PI x radius^2
The diameter is given as 25 inches, the radius is 1/2 the diameter.
Radius = 25/2 = 12.5 inches
area = 12.5^2 x 3.14
Area = 490.625 square inches
490.87
Step-by-step explanation:
3.14*25=78.50 <--- Pi w/ Diameter (trick)
25 divded by 2 =12.50
3.14*12.50^2=
Area = 490.87
Enjoy your day! <333
A basketball league wants to order 512 T-shirts for the teams. If there are 8 T-shirts in each package, how many packages of T-shirts should the league order?
Answers
Division!! 512 divided by 8 is 64
So reversed 64 x 8 is 512
Divide: 512/8 = 64
Check answer: 64 x 8= 512
Evaluate each expression, Giving the answer in Scientific notation.
1) 5.3 x 10^4 + 4.7 x 10^4
2) 3.7 x 10^6 - 3.3 x 10^6
3)4.8 x 10^-3 + 6.3 x 10^-3
4)6.6 x 10^-5 - 6.1 x 10^-5
Answers
2) 4x10^5
3)1.11x10^-2
4) 5x10^-6
Eighth grade A.2 Divisibility rules VW5
You have prizes to rev
There are 86,784 fish in a hatchery, which are divided evenly among the ponds. How many
ponds could there be at the hatchery?
Select all the possible numbers.
3
6
4
2
Submit
Type here to search
OC
,C
Answers
Answer:
3, 6, 4, 2
Step-by-step explanation:
The factors of 86784 are :
1 * 86784
2 * 43392
3 * 28928
4 * 21696
6* 14464
Type a digit that makes this statement true.
180,
93 is divisible by 9.
Submit
Answers
Type a digit that makes this statement true.
32,324,44
is divisible by 6.
Answers
Answer:
Step-by-step explanation:
it’s is divisible because it is also divisible by 2 ( they all end in even numbers) and 3 ( because if you add it’s numbers it gives you a multiple of 3)
Help please. I will do brainlyist later.
Answers
the dot above the -2 is not solid so -2 is not part of the solution.
Answer: a) x < -2
Answer:
A
Step-by-step explanation:
Open dot means less than or greater than not equal to
Have a nice day :)
In which class was his scores the closest to:
Answers
Answer:
Theater
Step-by-step explanation:
MAD stands for Mean Absolute Devastation, which is the average difference between numbers/data.
The cost of
3
bags of grapes is normally
$
9.36
, but they are on sale for
$
7.59
. What is the savings for each bag?
Answers
Answer:
The answer will be one dollar and 77 cents ($1.77)
Step-by-step explanation:
$9.36
-$7.59
—————
$1.77
9.36-7.59
=$1.77