Three shipping companies want to compare the mean numbers of deliveries their drivers complete in a day.
The first two shipping companies provided their data from a sample of drivers in a table.
Company C showed its data in a dot plot.
Answer the questions to compare the mean number of deliveries for the three companies.
1. How many drivers did company C use in its sample?
Write your answer in the space below.
2. What is the MAD for company C's data? Show your work.
Write your answer in the space below.
3. Which company had the greatest mean number of deliveries?
Write your answer in the space below.
4. Compare the means for companies A and B. By how many times the MAD do their means differ? Show your work.
Write your answer in the space below.
Answers
Answer:
Step-by-step explanation:
1. the company C used 10 drivers
2. 6 + 7 + 8 + 9 + 10 + 10 + 10 + 12 + 14 + 14 = 100/10. The Mean = 10
(6- 10) + (7- 10) + (8- 10) + (9- 10) + (10- 10) + (10- 10) + (10- 10) + (12- 10) + (14- 10)
4 + 3 + 2 + 1 + 0 + 0 + 0 + 2 + 4 = 16/10 = 1 6/10
3. The groups that had the most deliveries where group A and B
4. So if there are 6 deliveries of group A and 14 deliveries from group B i think the MAD would be 4
By reading the dot plot,
Number of drivers used by company C in its sample = 10
Mean absolute deviation for company C's data = 2
Company B has the greatest mean number of deliveries.
The mean deliveries of company B is 4 times MAD of company A.
What is dot plot?Dot plot is a simple form of data visualization that consists of data points plotted as dots on a graph with an x- and y-axis.
Number of units used in the sample of a dot plot can be calculated by simple counting.
What is mean absolute deviation?The mean absolute deviation (MAD) is the mean distance between each data value and the mean of the data set.
We are given the sum of each point from the mean. It is 20. Mean absolute deviation can be calculated by dividing this sum by number of observations.
Mean absolute deviation of company C = 20/10 = 2.
Mean A = 6
Mean B = 14
Mean B - Mean A = 8 = 4 * 2 = 4 times MAD (since MAD =2 for both companies).
Learn more about dot plot here
https://brainly.com/question/22746300
#SPJ2
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Answer:
Step-by-step explanation:
A = length * width
Length = A ÷ width
[tex]= \frac{64x^{2}y}{16xy}\\\\= 4*x^{2-1}*y^{1-1}\\\\= 4x^{1}*y^{0}\\\\= 4x*1\\=4x[/tex]
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D i think is the answer
Step-by-step explanation:
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Step-by-step explanation:
because that is where they intersect
Answer:
y=4x-1y=−x+4
Step-by-step explanation:
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Answer:
Greatest common factor of 17
So, the prime factors of 45 are 3, 3, and 5. The Greatest Common Factor is the greatest number that is common (that is, in both lists). It is 17. Since 17 is a factor of itself and of 51 -- which is 3 x 17 -- then the greatest possible common factor is 17!
Step-by-step explanation:
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Please help !!!!! I need to pass
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Answer:
1/10
Step-by-step explanation:
I think
A jacket is reduced by 12% to £66 in a sale.
Find the original price.
Answers
Answer:
£75
Step-by-step explanation:
100-12=88
88÷88=1%
66÷88=0.75
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times by 100
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The permeters of the triangles shown are equal. Find the side lengths of each triangle
AB=
BC =
AC=
PQ=
QR=
PR=
Answers
Answer:
AB = 51
BC = 50
AC = 42
PQ = 42
QR = 42
PR = 59
Step-by-step explanation:
Perimeter of ∆ ABC = Perimeter of ∆ PQR
3x + 9 + 3x + 8 + 3x = 3x + 3x + 4x + 3
9x + 17 = 10x + 3
17 - 3 = 10x - 9x
14 = x
.: x = 14
AB = 3x +9 = 3×14+9 = 42+9 = 51
BC = 3x +8 = 3×14+8 = 42+8 = 50
AC = 3x = 3×14 = 42
PQ = 3x = 3×14 = 42
QR = 3x = 3×14 = 42
PR = 4x +3 = 4×14+3 = 56+3 = 59
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What is the perimeter of parallelogram ABDC?
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13 cm
12 cm
11 cm
Answers
Answer:
13 cm
Step-by-step explanation:
Add up all of the sides and you should get 13.
3 + 3 + 3.5 + 3.5 = 13
The numbers 1–15 are written on note cards and placed in a bag. One card will be drawn from the bag at random. 1. List the sample space for this experiment. 2. Are the events, selecting an even number and selecting an odd number, equally likely? Explain your answer. 3. Are the events, selecting a number divisible by 3 and selecting a number divisible by 5, equally likely? Explain your answer.
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Yes I believe they are 1 to 15. If I'm not wrong please dont report me.
Explain how to solve the equation 21 = m +14. What is the value of m?
Enter your explanation and answer in the space provided.
Answers
Answer:
m = 7
Step-by-step explanation:
21 = m + 14
21 - 14 = m
m = 7
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Answers
Answer:
576
Step-by-step explanation:
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Answer: (hopefully I didn't make a mistake :D )
y=-3+21
Step-by-step explanation: (I can't sketch the graph for you)
First you need to find the slope of the line passing through the points (5,4) and (-7,0). This can be done using the point-slope form of a line.
Point 1: (-7,0)
Point 2: (5,4)
y2-y1=m(x2-x1)
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y-9=-3(x-4)
y= -3x+12+9
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Show your step by step process.
Solve the system of linear equations.
Answers
Answer:
x=1 and y= 5[tex]\frac{1}{4}[/tex]
Step-by-step explanation:
To solve this, lets take the first equation and find the x value.
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5x+4y=16
-5x -5x
4y=-5x+16
÷4 ÷4 ÷4
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or
y=-1[tex]\frac{1}{4}[/tex]+4
or
y= 5[tex]\frac{1}{4}[/tex]
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5x+4([tex]\frac{-5}{4}[/tex]+4)=16
5x-5+16=16
5x+11=16
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Answer:
-1
Step-by-step explanation:
5/1 would equal 5.
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THE ANSWER IS -1 OKAYYYYyyyyyyyyyyy. sorry i had to write more than 20 letters
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Mo, Ali’s best friend, suggests that Ali seat an equal number of adults and an equal number of children at each table.
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Answers
Answer:
Ali could use 6 tables. There would be 3 adults
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Step-by-step explanation:
GCF to find the number of tables:
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Answer:
Where is it?
Step-by-step explanation:
Where is the question exactly?
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Step-by-step explanation:
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Answer:
B
Step-by-step explanation:
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Answer:
4c-20= 4
+20 +20
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/4 /4
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Answer:
c = 1 btw can i be brainiest...
Step-by-step explanation:
First, rewrite the left side of the equation and group and combine like terms:
c + (4 − 3c) − 2 = 0
c + 4 − 3c − 2 = 0
−3c + c + 4 − 2 = 0
−3c + 1c + 4 − 2 = 0
(−3 + 1) c + (4 - 2) = 0
−2c + 2 = 0
Next, subtract
2
from each side of the equation to isolate the
c
term while keeping the equation balanced:
−2c + 2 − 2 = 0
−2 − 2c + 0 = −2
−2c = −2
Now, divide each side of the equation by
−2
to solve for
c
while keeping the equation balanced:
−2c - 2 = −2 − 2
−2c − 2 = 1
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Step-by-step explanation:
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Answers
9514 1404 393
Answer:
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Step-by-step explanation:
The triangles in the figure are all similar, so the side lengths are proportional.
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Answers
Answer:
A: 26.89
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Step-by-step explanation:
70 percent of 250 is 26.89. 70 percent out of 3.20 is 0.96.
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Answer:
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Step-by-step explanation:
Evaluate the algebraic expression x^2 - 20 for x = 7 and for x = 9
Answers
Answer:
29
61
Step-by-step explanation:
x^2 - 20
x = 7 and 9
Evaluate
___________
We know the values of x, let's substitute them with the x in the problem :
(7)^2 - 20
49 - 20
29
(9)^2 - 20
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61
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+
s y=x+7
y = 6x + 2
Solution:
How do you solve this
Answers
Step-by-step explanation:
y=x+7........eqni
y=6x+2.....eqnii
putting the value of x in eqnii
y=6x+2
or, x+7=6x+2
or, 7-2=6x-x
or 5= 5x
hence,x=1
sbstutuung the value of x in eqni,
y= x+7
=1+7
=8
hence the value of y is 8
it is 212.5°C outside when the temperature starts increasing by 2.5°C each hour. How long will it take for the temperature to reach 25°C?
Answers
Answer: 75 hours
Step-by-step explanation:
Assuming you meant decreasing... you find out the span between 212.5 and 25 which is 187.5 and then divide it by 2.5 (which is the change)
simplify this equation: 2^-4 (2√3)^2
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Answer:
download photo math you can take pictures of math problems and will solve them.