Which statement must be true according to the dot plot?The number of text messages that Reza sent each day so
far in this billing cycle is shown on the dot plot.
Text Messages Per Day
O The data is symmetric and shows that he typically sent
about 6 to 8 text messages per day.
o The data is symmetric and shows that he sent 11 or 12
texts with the same frequency that he sent 1 or 2 texts.
O The data is skewed and shows that he typically sent
about 6 to 8 text messages per day.
O The data is skewed and shows that he sent 11 or 12
texts with the same frequency that he sent 1 or 2 texts.
2 3 4 5 6 7 8 9 10 11 12 13
Answers
*see attachment for the dot plot being referred to
Answer:
The data is symmetric and shows that he typically sent about 6 to 8 text messages per day
Step-by-step explanation:
The distribution of the data set on a dot plot can be said to be symmetric when most of the data points in the data are located or are concentrated at the center of the dot plot.
As we can observe from the given dot plot in the attachment, it shows that 6 to 8 text messages per day have more frequencies and are just right at the center of the dot plot. This shows the data is symmetric.
This also shows that Reza dents averagely 6 - 8 text messages per day. Reza can be said to have typically sent 6 - 8 text messages per day.
The rest statements about the dot plot are untrue.
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Answers
Option D is correct.
We have an expression that is used to calculate the area of a square - , where s is the side of the square.
We have to estimate the value of the expression
What is the area and perimeter of a square of side 'a' ?
The area of a square is - Area = and the perimeter is - P = 4a.
In the question, we have to estimate the value of the expression .
Let f(x) =
The expression given to us is .
Let f(s) =
Compare f(s) and f(x), you will get -
s = 8x
Hence, the expression represents the area of square with side length of 8x.
Hence, Option D is correct.
To solve more questions on squares, visit the link below -
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Answer:
option d
Step-by-step explanation:
please mark brainlist
Answers
Answer:
120 degrees.
Step-by-step explanation:
If it is a regular 6 sided figure then each interior angle is 180 - (360/6)
= 120 DEGREES.
Answers
The polar form of equation is r = -8sinθ.
What is polar form of complex number?
The combination of the complex number's modulus r and argument is how complex numbers are shown in polar form z = r cosθ + i r sinθ = r (cosθ + i sinθ), is the polar form of a complex number with coordinates (x, y). In the coordinate system, polar coordinates of real and imaginary numbers are used to represent the polar form.
Given x² + (y + 4)² = 16
here The following is the relationship between (r, θ) and (x, y) if they are in Cartesian form:
x = rcosθ, y = rsinθ and r² = x² + y² ad tanθ = y/x
x² + (y + 4)² = 16
x² + y² + 16 + 8y = 16
x² + y² + 8y = 0
r² + 8rsinθ = 0
r(r + 8sinθ) = 0
r =0 and r = -8sinθ
Hence the polar form of equation is r = -8sinθ.
Learn more about polar form of complex number;
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Answer:
c. r=-8sin(theta)
Step-by-step explanation:
edge 2021
Answers
this should be the correct answer
BRAINLIEST PLEASE
x= pages read per day
n= number of days
into smaller rocks for $10 a day. There are 999 other
employees on the island, 998 of whom get paid the same
way you do. The last employee is your overseer, who is
paid $10 million per year.
What is the mean and median income for
workers on Super Happy Fun Island?
Which method of describing central tendency
better represents this data? Why?
Answers
Answers:
mean annual income = $13,646.35
median annual income = $3,650
The median is a better measure of center
=======================================================
Explanation:
If you earn $10 a day, and do so for 365 days, then you earn 365*10 = 3650 dollars per year.
If there are 999 employees earning this amount, then the amount earned is 999*3650 = 3,646,350
Add on the 10,000,000 to get
10,000,000+3,646,350 = 13,646,350
The total amount earned is $13,646,350
Divide this over the 1000 people (999 workers + 1 boss)
We get: (13,646,350)/(1,000) = 13,646.35
The mean is annual income is $13,646.35
--------------------------------
The median is the middle most value. If you list out the pay amounts of just the workers, you'll get the list:
{3650, 3650, 3650, ..., 3650}
We will have 999 copies of 3650 listed out. You don't have to list all 999 of them. Just a few is a good start. The three dots indicate the pattern goes on until we reach the 999th item.
If we then tack on the overseer's pay, then we have the list
{3650, 3650, 3650, ..., 3650, 10 million}
I'm using "million" instead of the digits to avoid using commas here.
The middle won't change due to one item being tacked onto the end. The middle is going to be 3650 either due to it being part of the set, or we find the midpoint between 3650 and 3650, which averages out to 3650.
The median income is $3,650
-----------------------------------
The median income is the better measure of center because it represents where the workers are instead of some distant "midpoint" between the workers and the boss. No person is making $13,646.35 a year. They are either making $3,650 or they are making $10,000,000. There's nothing in between. So it's better go lean toward the larger group when deciding where the center should go. Think of it like a balance beam or a see-saw.
As you can see the median is not affected by outliers. We can change the "ten million" to something like "a hundred million" and the median would still be the same. I recommend you compute the mean if the overseer earns 100 million dollars, and you'll find the mean will increase dramatically. However, the median will stay where it's at. The only time the median will change is if we introduce elements that are somewhere around (either higher or lower) than 3650, and these values are close to 3650. But this won't change the center very much compared to the drastic changes the mean undergoes due to such a large outlier.
The general rule of thumb is: a large outlier to the right pulls the mean to the right. An outlier to the left pulls the mean to the left. In this case, the mean is pulled to the right. The data is skewed to the right (or positively skewed).
So again, the conclusion is that the median is the better measure of center.