Answer:
1. C. The managers used a cluster sample
2. B)The managers used a systematic sample.
3. The managers used a stratified sample.
Step-by-step explanation:
1. In a cluster sampling method, the population would be divided into several small units called cluster by the researcher. Within these clusters we randomly pick one or more to observe.
2. In systematic sampling we select elements from an ordered sampling frame.
3. In stratified sampling, the population is divided into several stratas and the researcher then selects randomly to complete the sampling process
The occupancy rate of a motel is the percentage of rooms that are occupied on a particular night. The
histogram below summarizes the occupancy rates for a random sample of 100 nights for a motel.
0.35
0.30
0.25-
0.20-
0.15-
0.10-
0.05
0+
0.60 0.65 0.70 0.75 0.80 0.85 0.90 0.95
Motel Occupancy Rate
Based on the histogram, which of the following values could represent Q3?
Relative Frequency
(A) 0.24
(B) 0.63
(C) 0.67
(D) 0.71
(E) 0.75
For the given table, the third quartile is given by:
(D) 0.71.
What are the median and the quartiles of a data-set?The median of the data-set separates the bottom half from the upper half, that is, it is the 50th percentile.The first quartile is the median of the first half of the data-set, which is the 25th percentile.The third quartile is the median of the second half of the data-set, which is the 75th percentile.Given a cumulative frequency table, the third quartile Q3 is the value when the sum of the frequencies is of 0.75.
From the frequency table, we have that:
A rate of 0.65 is the 30th percentile.A rate of 0.7 is the 57th percentile, as 0.3 + 0.27 = 0.57.A rate of 0.75 is the 80th percentile, as 0.57 + 0.23 = 0.8.Hence the 75th percentile is between 0.7 and 0.75, meaning that option D is correct.
More can be learned about the quartiles of a distribution at https://brainly.com/question/28168026
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2x-y ;x=5,y=1 evaluating algebraic expressions
Answer:
9
Step-by-step explanation:
2(5)-(1)
10-1
9
Matthew enjoys running and often runs at a steady pace to burn calories.
At this pace he can run 1,500 feet in 30 minutes.
*What is Matthew's unit rate?
*How far would Matthew run in 7 minutes?
Answer:
28
Step-by-step explanation:
Which equation shows an example of the associative property of addition?
(4+1) + 4 = 4 + (i + 41)
(4 + 1) + 41 = 4j + (-41 + 1)
4 • (-41 + 1) = (41 – 41) + (41 - 1)
O (-41 + 1) + 0 = (-41 + 1)
Answer:
A i think
Step-by-step explanation:
equation not in slope intercept form. 3y=9x-24
Qd=240-5P
Qs =P
Where qd is the quantity demanded, qs is the quantity supplied and p is the price. Determine the equilibrium quantity before the tax
Answer:
Equilibrium quantity before the tax = 40 units
Step-by-step explanation:
Given:
Qd = 240 - 5P
Qs = P
Computation:
Qd = 240 - 5P
P = 48 + Qd/5
Equilibrium quantity before the tax
Qd = 240 - 5P
P = 240 - 5P
6p = 240
p = 40
Qd = 240 - 5P
Qd = 240 - 5(40)
Qd = 40
Equilibrium quantity before the tax = 40 units
What is the measure of
Answer: B
Explanation: if it's not right, that's okay you triedyou will pass, i know it!
BRAINLIEST ANSWER! please show steps
3r+9 < = 21
< = is less than or equal to sign btw
Answer:
the answer is 4
Step-by-step explanation: r is the variable so we are trying to find a number that would equal 21 . 3x4=12+9=21 pls mark me brainiest thanks;p
1859 divided by 45 eeeee
Answer:
41.3111111111
Step-by-step explanation:
1859/45 = 41.3111111111
Answer:
41.31 with the 1 repeating.
Step-by-step explanation:
Edwards Manufacturing Company purchases two component parts from three different suppliers. The suppliers have limited capacity, and no one supplier can meet all the company’s needs. In addition, the suppliers charge different prices for the components. Component price data (in price per unit) are as follows:
Supplier
Component 1 2 3
1 $12 $13 $10
2 $15 $12 $10
Each supplier has a limited capacity in terms of the total number of components it can supply. However, as long as Edwards provides sufficient advance orders, each supplier can devote its capacity to component 1, component 2, or any combination of the two components, if the total number of units ordered is within its capacity. Supplier capacities are as follows:
Supplier 1 2 3
Capacity 525 975 900
If the Edwards production plan for the next period includes 1025 uni
Answer:
A)
Supplier
Component 1 2 3
1 125 900
2 525 300
B) Cost Table
1 2 3 Total
Component 1 1625 9000 10625
Component 2 7875 3600 11475
Total cost 7875 5225 9000 22100
Step-by-step explanation:
Table 1:
Supplier
Component 1 2 3
1 $12 $13 $10
2 $15 $12 $10
Table 2:
Supplier 1 2 3
Capacity 525 975 900
Now we are supposed to find production plan for the next period includes 1025 units of component 1 and 825 units of component 2
So,
Supplier
Component 1 2 3
1 125 900
2 525 300
Cost Table :
1 2 3
Component 1 [tex]13 \times 125[/tex] [tex]900 \times 10[/tex]
Component 2 [tex]15 \times 525[/tex] [tex]12 \times 300[/tex]
Cost Table
1 2 3 Total
Component 1 1625 9000 10625
Component 2 7875 3600 11475
Total cost 7875 5225 9000 22100
find the domain and range of the function represented by the graph.
During a 60-minute period, a traffic engineer counted 54 trucks and cars that crossed a bridge. The ratio of trucks to cars that travel across the bridge is usually 2:7. The equation LaTeX: \frac{2}{7}=\frac{t}{54-t}2 7 = t 54 − t can be used to predict the number of trucks, t, the engineer should have counted. How many trucks should the engineer have counted?
Answer:
Step-by-step explanation:
Given the expression for the equation representing the prediction of number of trucks as;
2/7 = t/54-t where t is the number of trucks
To get the number of trucks t, we will have to evaluate the expression and solve for t as shown;
Given 2/7 = t/54-t
Cross multiply
2(54-t) = 7t
Open the parenthesis
2(54)-2t = 7t
108-2t = 7t
7t+2t = 108
9t = 108
Divide both sides by 9
9t/9 = 108/9
t = 21
Hence the engineers should have counted 21trucks
help me pplleeaassee?!
Answer:
1. Quadrant IV
2. Quadrant I
3. Quadrant II
4. Quadrant III
Plz mark brainliest:)
I NEED HELP ASAP PLZZZ!!!!!!!!!!!!!
Answer:
First plot a point at (0,-8)' then from there go up three and right 1 then plot the point and so on. Go down 3 and back 1 to graph the other way
Step-by-step explanation:
-8 is the y intercept so the graph goes through (0,-8) and the slope is 3 because its ax-b and the slope is a
Alex is x years old. Addison is y years younger. Find their combined age in 10 years’ time.
Answer:
x+10-y
Step-by-step explanation:
i'm not 100% sure about this response, but i'd assume the answer is like this for the following reasons:
alex is x years old, and 10 years have passed, meaning 10 years are added onto his age (x+10). addison is still the same amount of years apart from him in age, so you subtract y from that (x+10-y).
-7x-8=x-8(1-5x)
Help me please
Answer:
The answer is x = 0
Step-by-step explanation:
-7x - 8 = x - 8(1-5x)
Simplify and FOIL.
-7x - 8 = x - 8 + 40x
-7x - 8 = 41x - 8
Add 7x to both sides.
-8 = 48x - 8
Add 8 to both sides.
0 = 48x
x can only be 0 to multiply it by any other number and get 0.
x = 0
1. Dei has $10 to spend on nail polish. With
tax each bottle costs $2.49. Can Dei buy 3
bottles of nail polish?
Answer:
Yes she can
Step-by-step explanation:
Answer:
yes it would be 7 dollars
simplify: 3a-4b+5a+10b
Answer:
Step-by-step explanation:
8a+6b
Answer:
8a+6b
Good Luck!!!
PLEASE HELP!!!! I WILL MARK BRAINLYEST!!!!
The fractions -42/-45 and 14/15 are equivalent fractions.
True or False
A ball falls from a window. Its height, as a function of time, is modeled by
y=-4.9x^2 + 12
Which statement best describes the function?
A. The function is nonlinear
B. The function is linear at some points and nonlinear at other points.
C. Not enough information is given to decide,
D. The function is linear
Answer: A
Step-by-step explanation:
-11 + 9(x + 1) = 4(1 + 3x) - 3
Answer:
x = -1
Step-by-step explanation:
-11 + 9(x+1) = 4(1+3x) - 3
9x + 9 - 11 = 12x + 4 -3
9x - 2 = 12x +1
-2 = 3x + 1
-3 = 3x
x = -1
Hope this helped
Sorry if it's wrong
:)
R(0, 9) and S(4, 5) are the endpoints of a line segment. What is the midpoint M of that line segment?
Write the coordinates as decimals or integers.
M = (
,
)
M = ( 2, 7)
Step-by-step explanation:
formula to find mindpoint is
[tex](\frac{x2 + x1}{2} \frac{y2 + y1}{2} )[/tex]
(0,9) = (x1, y1)
(4,5) = (x2,y2)
now substitute those into the formula!
[tex](\frac{4 + 0 }{2} \frac{5 + 9}{2} )[/tex]
now solve for x & y !!
[tex]x = \frac{4 + 0}{2} = \frac{4}{2 } = 2[/tex]
[tex]y = \frac{5 + 9}{2} = \frac{14}{2} = 7[/tex]
so now that we have solved for x & y put it in point form and your done !!
point for is (x,y)and thanks why the Midpoint is (2,7)
HELP ME THX I don't want to fail...
Answer:
EF = 11
JK = 32
Step-by-step explanation:
Because the average of 10 and 12 is 11, therefore that would be the answer, since EF has a slite angle, finding the average of the largest side length and the opposite side would be the best way to find it.
Because the average of 28 and 36 is 32 your answer would be 32, this is from adding both lengths on LJ, which is 12 and 24, I added them to get 36, then found the average, the average was 36, meaning that this was your answer.
While making desserts for a bake sale, Steve used 5/6 of a scoop of brown sugar as well as 1/6 of a scoop of white sugar. How much more brown sugar did Steve use?
Answer:
5/6 - 1/6 = 4/6 = 2/3
Step-by-step explanation:
Since both numbers' denominators are the same, all you have to do is minus normally on the top numbers. You would take the difference and put it on the same denominators. Finally simplify!
You want to buy some beans. An 8-ounce package costs $2.88. A 14-ounce package costs $4.76. A 20-ounce package costs $7.40. Which package is the Best Buy?
Answer:
20 ounce package
Step-by-step explanation:
will last forever
143.596 rounded to the nearest hundredth
Answer:
143.6
Step-by-step explanation: its 143.6 because 9 rounded to the nearest number is 10 and that bumped the 5 to a six
A bag contains three blue marbles, five red marbles, and four green marbles.
Part A: What is the probability of selecting a red marble?
Part B: What is the probability of selecting three red marbles without replacement?
Part C: In a short paragraph, explain in your own words your work to Step B
Answer:
Below.
Step-by-step explanation:
The total number of marbles is 12.
Part A.
Prob(Red marble) = 5/12.
Part B.
Prob(pick 3 red marbles without replacement) = 5/12 * 4/11 * 3/10 = 1/22.
Part C.
The probability of the first being red is 5/12 because there are 5 red out of a total of 12 marbles. After that there are only 4 marbles and the total is 11 ( 1 marble less). Finally on the 3rd pick there are 3 red and a total of 10. WE then multiply these 3 probabilities.
transpose v= u + t for t
Complete the division problem by determining the number that should be placed in the box.
Division bracket with 14 on the left, 7658 inside, and 547 above it. Underneath the 7658, there is a minus 7000. Then there is a solid line with 658 under the line. There is a minus sign and an empty box followed by a solid line. Beneath the line, there is a 98 minus 98 underneath. There is a solid line and a 0 to end the problem.
Answer: 560
Step-by-step explanation:
547
14 | 7658
-7000
________
658
- 560
___________
98
- 98
__________
0
hope that helps i hope it correct and helps :D
Hep:/ i am kid
Convert the following binary numbers into quinary:
11012
Answer: 42121005
Step-by-step explanation: A hexadecimal number is a number expressed in the base-16 number system, which uses 16 different symbols (0 to 9, A to F). In quinary number or base-5 number system we use 5 different symbols (0 to 4)