The spinner below shows 5 equally sized slices. Yolanda spun the dial 20 times and got the following results Outcome Grey 7 White 7 Black 6
Number of Spins
. Fill in the table below. Round your answers to the nearest thousandth. (a) Assuming that the spinner is fair, compute the theoretical probability of landing on grey.
(b) From Yolanda's results, compute the experimental probability of landing on grey.
(c) Assuming that the spinner is fair, choose the statement below that is true:
As the number of spins increases, we expect the experimental and theoretical probabilities to become closer, though they might not be equal.
As the number of spins increases, we expect the experimental and theoretical probabilities to become farther apart.
The experimental and theoretical probabilities must always be equal.
Answers
Answer:
Step-by-step explanation:
There are 5 equal areas. 2 of them are gray
2/5 = 0.4
P(gray) = 0.4
The experimental probability is 7/20 = 0.35
The first statement is the correct one. Computers like figuring out these kinds of questions. If you did this a million times, you would come very close, if not exactly, to 0.4
Related Questions
Where did paco make an error in his calculation?Explain.
Answers
Answer:
He made a mistake in step 2
Step-by-step explanation:
-3x does not equal 6 it clearly states it equals 1
Evaluate the expression 122 – (9 – 7)3 +6.
122 – (9 - 7) + 6 = 122
+6
Answers
Answer:
Im kinda confuse but (9 - 7)3 + 6 should be 14
Step-by-step explanation:
12 points help fast I need help
Answers
Answer:
False, False, True, TrueStep-by-step explanation:
1
IQR'sRide A: 30 - 20 = 10Ride B: 30 - 10 = 20False, as 10 < 202
MediansRide A: 25Ride B: 20False, as 25 > 203
RangesRide A: 45 - 5 = 40Ride B: 35 - 0 = 35TRUE, as 40 > 354
MinimumRide A: 5Ride B: 0TRUE, as 0 < 5Write the quadratic equation in standard form:
8x2=8x + 13 + 4x2
Answers
| means square root btw
and i put / to make it a fraction
Need Help Asap Please
Answers
Answer:
corporation C owns the most land
Step-by-step explanation:
hope it helps
Someone please help asap!!! It’s due in 45 minutes, how am I supposed to know where to shade when doing these?
Answers
Answer:
If you want to know the process on how to graph and shade, start by graphing the inequalities. Assume that the inequality signs are just =, so the equation is y=mx+b. Let's use 1) as an example. When the sign is < or >, it's a dotted line. If the sign is ≥ or ≤, it's a solid line. Once you're done graphing the inequalities, choose a random coordinate on the graph. Let's use (0,0). Now, plug in the x- and y-value into the equations. 0<-6(0)+3 and 0≤0-2. Simplify it to get 0<3 and 0≤-2. Because the inequality is true for y<-6x+3, you would shade the side of the graph that includes (0,0). Because the inequality isn't true for y≤-x-2, you would shade the side of the graph that doesn't include (0,0). The shaded parts of both inequalities should overlap somewhere and that's the area you need to officially shade.
Here's the worked example:
If you are still confused, feel free to ask! :)
Need help asap! Please and thank you
Answers
Answer:
D
Step-by-step explanation:
(Hope this helped)
solve these equations, show all your work 7x=14
Answers
Answer:
x=2
divide everything by 7. 14/7= x=2
Step-by-step explanation:
The weight of oranges growing in an orchard is normally distributed with a mean weight of 5.5 oz. and a standard deviation of 1 oz. Using the empirical rule, determine what interval would represent weights of the middle 68% of all oranges from this orchard.
pleaseeee help me now, im taking a test and it's timed
Answers
This is bevause 1 standard deviation contains 34% of the sample in a normal distribution, so 1 standard deviation on either side is 68% and so you +\- 1 oz from the mean.
5x + y = -3
x + 4y = 26
Slove this using elimnation
Answers
Answer:
x=-2 y=7
Step-by-step explanation:
Multiple -5 for the second equation to get -5x-20y=-130. Adding -5x-20y=-130 to 5x+y=-3 should get you -19y=-133. Divide both sides by -19 to get y=7. Subsitute 7 in for y for the first equation. Subtract 7 on both sides to get 5x=-10. Divide both sides by 5 to get x=-2. So, x=-2 and y=7.
A team won 5 and lost 2 of their first 7 games. The
team continued to win at this rate and won w
games in the 28-game season. Which of the
following proportions could be used to determine w?
Answers
Answer:
5/7=W/28
Step-by-step explanation
They won 5 out of 7 played games so that's their win rate. If the same team continued to do this for 28 games then they would win 20 times.
I need this answer as quick as possible!
A watercolor painting is 25 inches long by 12 inches wide. Ramon makes a border around the watercolor painting by making a mat that adds 3 inches to each side of the length and the width. What is the area of the mat?
Answers
Answer:
the area of the mat = total area added minus the original area of the water color painting.
Step-by-step explanation:
length of the mat is:L = 20 in + 1 in + 1 in because 1 in is added to each sideL = 22 inwidth of the mat is:w = 9 in + 1 in + 1inw = 11 in
Area mat = (22 in x 11 in) - ( 20 in x 9 in)
area mat = 62 sq in is the area of the mat
If U = {1,2,3,......., 15), A = {1,3,5,7,9}, B = {1,2,3,4,5,6,7}
& C = {3,6,9,12,15), find the value of (A - B)UC.
Answers
Answer:
A-B means which is only in A not in B
Step-by-step explanation:
A-B={1,3,5,7,9}-{1,2,3,4,5,6,7}
={9}
(A-B)UC={9}U{3,6,9,12,15}
={3,6,9,12,15}
Answer:
the answer is a and b and h
thank
Find the value of cos[cos^-1(sqrt 2/2)-n/2]
Answers
Answer:
I highly think it's D. [tex]\frac{\sqrt{2} }{2}[/tex]
Step-by-step explanation:
Your local dry cleaners is running a special. The dry cleaner is offering a 13% discount for any drop off that is over $40. Also, they are running a neighborhood special of an additional 5% off. Given this information, determine the decay factor corresponding to each percent decrease.
a.
34.8; 33.06
c.
0.87; 0.95
b.
0.384; 0.3306
d.
87; 95
Answers
Answer:
a. 34.8; 33.06
Step-by-step explanation:
The computation is shown below;
since in the question it is mentioned that that if the price is $40 so if offered the 13% discount
So the 13% discount on $40 is
= $40 - 13% of $40
= $34.80
Now additional 5% is also provided
So,
= $34.80 - 5% of $34.80
= $33.06
Therefore the first option is correct
x = 12 − y
2x + 3y = 29
Answers
Bring the variables to one side and the constants to the other side of the equal sign. Remember if you bring anything to the other side it’s sign has to change:
x + y = 12
2x + 3y = 29
Now multiply a variable on the top equation so that it will be equal with the variable on the second:
3x + 3y = 36
2x + 3y = 29
Now subtract the equations which gets you:
x = 7
So we know what the x is, now we have to substitute the x in an equation we created; we’ll go with x + y = 12:
x + y = 12
= 7 + y = 12
Now bring the variable to one side and constants to the other like we did before (remember, the sign must change if the constant or variable is moved to different sides of the equal sign):
y = 12 - 7, which would equal y = 5.
So our answer would be:
( x, y ) = ( 7, 5 )
Hope this helps have an awesome day!
calculate the area of this triangle
Answers
Answer:
30 cm^2
Step-by-step explanation:
2. The side lengths of a square measure 25.3 cm. Estimate the area of the
square.
about 25 sq. ft.
about 50 sq. ft.
about 500 sq. ft.
about 625 sq. ft
Answers
Answer:
625 sq ft.
Step-by-step explanation:
25 cm is close to 25.3 so our estimate is 25 * 25 = 625.
Hiiiiiii pls helppppppppp plsssss and thxxxxxx
Answers
Answer:
It's A I believe
Step-by-step explanation:
Answer:
D, 1056 Cubic inches
Step-by-step explanation:
Multiply 11x16 to get the 2-d area of it's base. after multiply by 8 to get its hieght. You have the volume of the shape with the step-down filled. To find the volume with the step down empty, divide by 4 to get the area of 1/4. then multiply by 3 to find 3/4 of the rectangular prism
{[(11×16×8)÷4]3} <== Equation
HELP ME PLEASE I WILL GIVE BRAINLIEST
Answers
Answer:
a. Koby only
Step-by-step explanation:
KOBY
[tex]\frac{w^{3}*w^{5} }{ (w^{2} )^{4}} =\frac{w^{3+5} }{w^{2*4} } =\frac{w^{8}}{w^{8} } =1[/tex]
PAULO
[tex](m^{5} )^{2}*(m^{-3} )^{3}=m^{5*2} *m^{-3*3}=m^{10}*m^{-9}=m^{10-9}=m^1=m[/tex]
Solution: w8/w8 =1
Andy flipped a coin once and rolled a six-sided number cube numbered 1 through 6
Answers
Answer:
possiblity of getting any number is 1/6
Step-by-step explanation:
Find a polynomial f(x) of degree 5 that has the following zeros. 1, 8, -7, 5, -4. Leave your answer in factored form
Answers
Answer:
f(x) = (x-1) (x-8) (x +7)(x-5) ( x+4)
Step-by-step explanation:
The zeros of the function are written in the form
f(x) = (x-a)(x-b)..... where the a,b are the zeros
f(x) = (x-1) (x-8) (x - -7)(x-5) ( x--4)
Rewriting
f(x) = (x-1) (x-8) (x +7)(x-5) ( x+4)
Select the correct answer.
Factor the polynomial below.
4.12
16
ОА.
4(x - 2)2
O B.
4(x + 2)(x - 2)
O c.
4(2 - x)2
4(2 + x)2 - x)
Answers
Answer:
B
Step-by-step explanation:
That was actually trickier than I thought it would be
I was looking for 4(x-4), but 4(x-2)(x+2) also works
Answer:
4(x - 2)(x + 2) (Answer B)
Step-by-step explanation:
4x^2 - 16 is the difference of two squares, a case in which there is a simple formula to remember: a^2 - b^2 = (a - b)(a + b)
4x^2 - 16 = (2x - 4)(2x + 4)
This can be further simplified: 2(x - 2)(2)(x + 2) = 4(x - 2)(x + 2) (Answer B)
Can someone please help?
Answers
Answer:
Step-by-step explanation:
1/4 < 3/8
Answer:
The third one, 1/4 < 3/8
Step-by-step explanation:
The sign < means 3/8 is bigger than 1/4
!!!!!MAJOR HELP PLS!!!!!
!!!!!I will give 1 Brainly!!!!!
What is the function equation for the input/output table?
X|Y
2|10
5|13
8|16
11|19
A.y=8x
B.y=x+8
C.y=5x
D.y=x+3
Image example is above
Answers
Answer:
The answer is D.
The answer is y=x+3
Answer:
A. y = x/8
Step-by-step explanation:
for example
y = 4 and x = 32
y = x/8
y = 32/8
y = 4
#CMIIWSolve 4y^2+7y+2=0 to 2 decimal places
Answers
Answer: There were two sloutions either y= -1/4= -0.250 or y=2
pls help it is easy but i did not understand it
Answers
Answer:
I guess the answer would be
Step-by-step explanation:
[tex]\frac{3}{4}[/tex]
Can someone help me rnnn please??
Answers
Answer:
No, they are the same triangles
Step-by-step explanation:
They both have a side length of 3 and 5 and an angle that measures 60 degrees. The triangles are just flipped in different directions.
If they were to draw an additional triangle that would make it seem different, they could expand the angle and make it obtuse to get a triangle with 1 wide corner.
Need help solving this!
Answers
Answer:
A = 4πcm, 6πcm²
B = 45°, 35πcm²
C = 12m, 18.7πm or 19πm
Step-by-step explanation:
Formulas used...
Length of an arc of a sector = (¢/360)×2πr
Area of sector = (¢/360)×πr²
¢ means the angle given or used
Sharon wants to put lace around the edge of the circular mirror shown.
12 in.
C = TD, where C is the circumference, and D is the diameter. Use 3.14 for the value of .
How many inches of lace will Sharon need to cover the edge of the mirror exactly once?
A. 3.82 in.
B. 18.84 in.
C. 37.68 in.
D. 75.36 in.
Answers
Answer:
37.68in
Step-by-step explanation:
Circumference = πd
d is the diameter = 12in
To get the number of lace that will cover we will find the circumference
C = 12 * 3.14
C = 37.68in
Hence the amount of lace needed is 37.68in