Evan has equal numbers of pop songs, jazz songs, and rock songs loaded on his personal music player. He has it set to play songs on a random shuffle. Suppose Evan is designing a simulation that could be used to estimate the probability that the next two songs to play are both jazz songs. Which simulation design could Evan use to estimate the probability?
A. Coin
Let heads (H) = jazz
Let tails (T) = pop or rock
Toss coin three times. Repeat.
B. Number cube
Let 1 = pop
Let 2 jazz
Let 3 = rock
Roll cube four times. Repeat.
C. Number cube
Let 1,2 = pop
Let 3,4 = jazz
Let 5, 6 = rock
Roll cube two times. Repeat.
D. Random Digits
Let 1,2,3 = jazz
Let 4,5,6 = pop
Let 7,8,9,0 = rock
Select two random digits. Repeat.
Answers
Answer 1
Answer:
Answer: the answer is a
Step-by-step explanation: if you flip a coin there will always be an answer but if you roll a cube you would get many answers.
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Answers
To find mean/average it's fairly simple!! :)
The first thing you should do is add up the first numbers -
* 20 + 15 + 16 = 51 :)
* 16 + 19 + 17 = 52
Now divide each of the scores by the amount of numbers there is -
* 20 (1) 15 (2) 16 (3)
* 16 (1) 19 (2) 17 (3)
51 ÷ 3 = 17 (Rolanda's Average Score)
- Which # is bigger?
52 ÷ 3 = 17.3 (Jetta's Average Score)
The first thing you should do is add up the first numbers -
* 20 + 15 + 16 = 51 :)
* 16 + 19 + 17 = 52
Now divide each of the scores by the amount of numbers there is -
* 20 (1) 15 (2) 16 (3)
* 16 (1) 19 (2) 17 (3)
51 ÷ 3 = 17 (Rolanda's Average Score)
- Which # is bigger?
52 ÷ 3 = 17.3 (Jetta's Average Score)
First, whats the defintion of mean? Ill tell you:)
Mean: The mean is the average of the numbers; a calculated (central) value of a set of numbers.
How to find it? We add all of the scores together and then divide them by the number of scores.
So first lets work on Rolanda's Mean.
They gave us the numbers 20, 15, and 16
1st. Lets add
20 + 15 + 16 = 51
2nd. Divide by 3 since their are 3 test scores
51 ÷ 3 = 17
So rolanda's mean is 17!
Now lets work on Jetta's mean.
They gave us the numbers 16, 19, and 17
1st. Lets add.
16 + 19 + 17 = 52
2nd. Divide by 3 since their are 3 test scores.
52 ÷ 3 = 17.333333333333333
So jetta's mean is 17.333333333333333
Now lets compare:)
Rolanda's mean = 17
Jetta's mean = 17.33333333333333333
Obviously, whos is bigger?
Jetta's Mean is bigger :)
Hope this helps!
and don't forget 2
MARK ME BRAINLIEST!
=)
Mean: The mean is the average of the numbers; a calculated (central) value of a set of numbers.
How to find it? We add all of the scores together and then divide them by the number of scores.
They gave us the numbers 20, 15, and 16
1st. Lets add
20 + 15 + 16 = 51
2nd. Divide by 3 since their are 3 test scores
51 ÷ 3 = 17
So rolanda's mean is 17!
They gave us the numbers 16, 19, and 17
1st. Lets add.
16 + 19 + 17 = 52
2nd. Divide by 3 since their are 3 test scores.
52 ÷ 3 = 17.333333333333333
So jetta's mean is 17.333333333333333
Now lets compare:)
Rolanda's mean = 17
Jetta's mean = 17.33333333333333333
Obviously, whos is bigger?
Jetta's Mean is bigger :)
Hope this helps!
and don't forget 2
MARK ME BRAINLIEST!
=)
Answers
Steps to solve:
1. 3/4+1/5
Change both denominator to the same- 4*5=20
So far its: ?/20 + ?/20
2. For the first fraction (3/4) we do 3*5=15
Because when we found the denominators we multiplied each denominator by each other. For the second one we do pretty much the same. We do 1*4=4.
3. The final equation is 15/20 + 4/20.
Now add both numerators, which is 19. You leave the denominator as it is. So the final fraction is 19/20.
4. Next to get a full fraction from 19/20 you need 1/20 to get 20/20=1.
On the calculator you type in: 1/20*1800
OR... 1800/20
OR... (18/2)100
So the final answer is 90. 1800/20=90
= 90 members under the age of 25.
1. 3/4+1/5
Change both denominator to the same- 4*5=20
So far its: ?/20 + ?/20
2. For the first fraction (3/4) we do 3*5=15
Because when we found the denominators we multiplied each denominator by each other. For the second one we do pretty much the same. We do 1*4=4.
3. The final equation is 15/20 + 4/20.
Now add both numerators, which is 19. You leave the denominator as it is. So the final fraction is 19/20.
4. Next to get a full fraction from 19/20 you need 1/20 to get 20/20=1.
On the calculator you type in: 1/20*1800
OR... 1800/20
OR... (18/2)100
So the final answer is 90. 1800/20=90
= 90 members under the age of 25.
To solve this, we add , 3/4 + 1/5
To add fractions we different denominators we have to find a common multiple.. 4 * 5 = 20 and 5 * 4 = 20
We multiply everything by 5 (for 3/4), to get 15/20
We multiply everything by 4 (for 1/5), to get 4/20
= 15/20 + 4/20 (add the numerators)
= 19/20
If 19/20 people are 25 to 60+,
that means 1/20 of people are under 25
We apply this to 1800 gym members:
1800 / 20 <- get's us 1/20 of 1800
= 90
There are 90 members under 25
To add fractions we different denominators we have to find a common multiple.. 4 * 5 = 20 and 5 * 4 = 20
We multiply everything by 5 (for 3/4), to get 15/20
We multiply everything by 4 (for 1/5), to get 4/20
= 15/20 + 4/20 (add the numerators)
= 19/20
If 19/20 people are 25 to 60+,
that means 1/20 of people are under 25
We apply this to 1800 gym members:
1800 / 20 <- get's us 1/20 of 1800
= 90
There are 90 members under 25
Answers
View this equation as a quadratic like so:
We can factor just like a normal quadartic!
We want two numbers that multiply to 36x² and add to -13x.
These numbers are -9x and -4x.
Because our leading coefficient is 1, we can factor straight to (x²-4)(x²-9).
Here's what it would look like if we split the middle and factored:
Of course, any value which causes either factor to equal zero is a solution.
The other factor times zero is still going to be zero, of course.
Let's derive these two possibilities from our equation.
We can add that constant to the right side...
And take the square root of each side.
So, your possible x values are
2, -2, 3, and -3.
x⁴-13x²+36
(x²-4)(x²-9)
x²=4. | x²=9
x=√4. |x=√9
x=2. |x=3
27x³-8=0
x³=8/27
x=2/3
...
-------------------
(x²-4)(x²-9)
x²=4. | x²=9
x=√4. |x=√9
x=2. |x=3
27x³-8=0
x³=8/27
x=2/3
...
-------------------
Drag and drop the correct answer to complete the statement.
Each bag will have exactly________pounds of flour
Answers
1&1/4 POUNDS IN EACH BAG....
convert to improprer
6 and 1/4=6+1/4=24/4+1/4=25/4
x divided by y is teh same as x times 1/y
6 and 1/4 divided into 5 is the same as 6 and 1/4 times 1/5 whichis the same as
25/4 times 1/5=25/20=5/4=1 and 1/4
each bag has 1 and 1/4 lb of flour
6 and 1/4=6+1/4=24/4+1/4=25/4
x divided by y is teh same as x times 1/y
6 and 1/4 divided into 5 is the same as 6 and 1/4 times 1/5 whichis the same as
25/4 times 1/5=25/20=5/4=1 and 1/4
each bag has 1 and 1/4 lb of flour
Answers
140 degrees i hope it helps
140 hopes this help bby
Answers
In order to work out the mean, we add all the values together and then divide by how many values we had. In this case we had
(27 + 25 + x)/3 = 28
To work out what the third day (x) was, we must work backwards and do the opposite.
If finding the mean was adding then dividing, to find the value, we must multiply and then subtract.
Instead of diving by 3, we multiply by 3
28 x 3 = 84
Next we subtract the two values we already have, from 84
84 - 27 = 57
57 - 25 = 32 minutes
On the third day, Greg took 32 minutes to get to work.
(27 + 25 + x)/3 = 28
To work out what the third day (x) was, we must work backwards and do the opposite.
If finding the mean was adding then dividing, to find the value, we must multiply and then subtract.
Instead of diving by 3, we multiply by 3
28 x 3 = 84
Next we subtract the two values we already have, from 84
84 - 27 = 57
57 - 25 = 32 minutes
On the third day, Greg took 32 minutes to get to work.
mean means average basically you do (total amount over time)/(total time)
in this case
(25+27+x)/(3)=28
solve for x
multiply both sides by 3 to clear fraction
25+27+x=84
add like terms
25+27=55
52+x=84
subtract 52 from both sides
x=32
he worked 32 mins
in this case
(25+27+x)/(3)=28
solve for x
multiply both sides by 3 to clear fraction
25+27+x=84
add like terms
25+27=55
52+x=84
subtract 52 from both sides
x=32
he worked 32 mins
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