Problem 1
The variable "favorite style of sweatshirt" is a qualitative variable instead of a quantitative one. This is because the categories "hoodie", "pullover" and "zip-up" are not quantitative in nature. They are simply labels or names. Yes we can assign a frequency tally for each one, which is likely what she's doing, but that's a slightly different story from what your teacher is asking.
An example of a quantitative variable is "height". This variable can take on any positive numeric value, within realistic reason of course. Theoretically there are infinitely many possible height values if we allow as much precision as we want. Even in a more finitely restricted space, we still have a lot of values to work with. We don't consider each number a different label or category or class. It's just a number. So that's what makes "height" a quantitative variable.
Keep in mind that just because you have a number, doesn't mean it's automatically quantitative. A phone number or a basketball player jersey number are two examples of numbers that are labels. We cannot add up a bunch of phone numbers to get something meaningful. Ask yourself "can I do math operations on these numbers?". If the answer is "yes", then you have quantitative data. Be careful to ask this question for any kind of data you have. Going back to Dyani's data, the category names cannot have math operations applied to them, so that's more evidence we're not dealing with quantitative data.
In short, Dyani has qualitative data instead of quantitative data. Specifically, she has nominal data because each label can be thought of as a name. There is no order to each choice, which means the data is not ordinal.
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Problem 2
The answer to this question is found at the top, in the very first sentence. She wants to know what the most common car is. The population is the set of all student drivers at that school. Let's say there are 400 students who drive to school. That would mean the population would be those 400 people.
Because it's likely too time consuming to survey every member of the population, a sample is used instead to make the best estimate of what the population is. So this is what she's doing when she asks every 10th student to take part of the survey. This is known as systematic sampling because there's a pattern or rule to her choices. This form of sampling can be fairly unbiased assuming that she does this on various different days to get a good snapshot. If she only did it on one day, then it could be likely that some students skipped school or some were out sick. The more she samples, the better look she'll have at the population.
Fill in the table and graph the points 1 Fill in the table for the equation: y = 3x + 2
x y
0 ?
1 ?
2 ?
2. Graph the points.
linda bought 1 shirt and 2 ties at the same store. What is the total price, in dollars and cents, of Linda's purchase?
what is the volume for this prism 7 1/2cm 12cm 15 1/2cm
PLEASE HELP ME WITH THIS
Answer:
Step-by-step explanation:
1) 792÷ 36=22
2) 1/2 ÷ 3 = 1/6
3) D
4) its 10,00 cause 7.741 x 10 = 77,410
5) the answer in decimal is 60.089
Write these equations of the line in point-slope form given the slope
#1 5 and (13, -8).
#2 2/5 and (6, -7
Answer: #1) y=5x-73
#2) y= 2/5x - 47/5
Step-by-step explanation:
I was confused on these
T-T
Answer:
Step-by-step explanation: The answer for 7: is 7/2
8: 28/5.
9: 9/4
10: 24/5
De que numero es 49 un medio de. un tercio mas?
Answer:
49 entre 3=16.33
la mitad de 49=24.5
Step-by-step explanation:
-2(x + 2) =
Please help
Answer:
-2x - 4
Step-by-step explanation:
Is your expression
-2 x x = -2x
-2 x 2 = 4
therefore, your expression would be:
-2x - 4
Answer:
-2(x + 2)= -2x - 4
Step-by-step explanation:
a model for a famous statue is 2 1/2 inches tall. The actual statue is 3 1/3 feet tall. What is the ratio of the height of the model to the height of the actual model in simplest form?
Answer:
Ratio [Model : Actual] = 1:16
Step-by-step explanation:
Given:
Height of model = [tex]2\frac{1}{2}[/tex] inches = 5/2 inches = 2.5 inches
Height of actual status = [tex]3\frac{1}{3}[/tex] feet = 10 / 3 feet
Find:
Ratio [Model : Actual]
Computation:
Height of actual status = [tex]3\frac{1}{3}[/tex] feet = 10 / 3 feet
Height of actual status = [10 / 3] x 12
Height of actual status = 40 inches
Ratio [Model : Actual] = 2.5 / 40
Ratio [Model : Actual] = 1:16
Express as a difference. 7+3. Please explain.
Answer:
7 + 3 = 10, difference means the answer to a subtraction problem, not sure I understand the question
Step-by-step explanation:
The given expression (7 + 3) represented in difference form as [tex]7-(-3)[/tex]
Difference of numbers :
We have to express 7 + 3 as difference of two number.
As we know that,
[tex]a-(-b)=a+b[/tex]
In above expression, (a + b) is difference of two number a and -b.
Similarly,
[tex]7+3=7-(-3)[/tex]
Thus, (7 + 3) represented in difference form as [tex]7-(-3)[/tex]
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Find the value of x , then find the measure of angle A ( show your work ).
Step-by-step explanation:
2x+2+6x+4=120°(exterior angle of a triangle is equal to the sum of its opposite interior angle)
8x+6=120
8x=120-6
8x=114
x=114/8
x=14.25
now,
angleA=2x+2
2×14.25+228.5+2 30.5°hope it helps.
If a person walks 16 miles in 10 minutes, how far will that person walk in one hour?
Answer:
too far to be human
Step-by-step explanation:
in 10 mins i walk 1 mile
Answer:
96 miles
Step-by-step explanation:
There are 60 minutes in 1hr so 10*6= 60
16*6= 96
:)
Tomer is playing a game that involves rolling 5 6-sided dice at once, and his goal is to roll the dice so exactly 4 of
them land showing a "1".
Which of the following would find the probability that exactly 4 of the 5 dice land showing a "1"?
A)(1/6)^4(5/6
B)(6/5)(1/6)^4(5/6)
C)(6/5)(1/6)^4(5/6)^2
D)(5/4)(1/6)^4(5/6)
E)(5/4)(1/6)^4(5/6)^2
Answer: D
(5/4) (1/6) 4^ (5/6)
Step-by-step explanation: I’m taking the test for this unit and I got it wrong but this was the CORRECT answer.
The probability that exactly 4 of the 5 dice land showing a "1" if, Tomer is playing a game that involves rolling 5 6-sided dice at once is 5 / 4 × (1 / 6)⁴ × (5 / 6), so option D is correct.
What is probability?The area of mathematics known as probability deals with numerical representations of the likelihood that an event will occur or that a statement is true. An event's probability is a value between 0 and 1.
Given:
Tomer is playing a game that involves rolling 5 6-sided dice at once,
Calculate the probability that exactly 4 of the 5 dice land showing a "1" as shown below,
Probability = 5 / 4 (1 / 6)⁴ × (5 / 6)⁵⁻⁴
Probability = 5 / 4 × (1 / 6)⁴ × (5 / 6)¹
Probability = 5 / 4 × (1 / 6)⁴ × (5 / 6)
Thus, the probability that exactly 4 of the 5 dice land showing a "1" is 5 / 4 × (1 / 6)⁴ × (5 / 6).
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PLS HELP DUE IN A HOUR!! FIND X
Answer:
x = 20
F = 46
Step-by-step explanation:
For x :
( 20 ) * 2 = 40
40 + 3 = 43
For degrees F
Add triangles have a angle sum of 180
So you just subtract 180 by the angles in the triangle
180 - 91 = 89
89 - 43 = 46
46 is remaining so it is the missing degrees ( F )
Find the error then show the correct way step by step.
Question 4
The error was that in step 2, when distributing -3 into the parentheses, the person did not change the sign of 24 so that it was negative, since a negative number multiplied by a positive number will always make a negative number. Here is the correct way to solve this equation:
[tex]-5x+12-7x=-3(5x+8)\\-12x+12=-3(5x+8)[/tex]
Distrubute -3 into the parentheses
[tex]-12x+12=-15x-24[/tex]
Subtract both sides by 12
[tex]-12x+12-12=-15x-24-12\\-12=-15x-36[/tex]
Add 15x to both sides
[tex]-12+15x=-15x-36+15x\\3x=-36[/tex]
Divide both sides by 3
[tex]\frac{3x}{3} =\frac{-36}{3} \\x=-12[/tex]
Question 5
The error was that 2 was added on both sides in step 5 instead of being subtracted from both sides. Here is the correct way to do it, starting from step 4:
[tex]10=16x+2[/tex]
Subtract both sides by 2
[tex]10-2=16x+2-2\\8=16x[/tex]
Divide both sides by 16
[tex]\frac{8}{16} =\frac{16x}{16} \\\frac{1}{2}=x[/tex]
I hope this helps!
Hailey's car used 4 gallons to travel 172 miles. At what rate does the car use gas, in miles per gallon?
Answer:
43
Step-by-step explanation:
43 miles for every 1 gallon of gas
A store that sells skis buys them from a manufacturer at a wholesale price of 57. the stores markup rate is 50%
What price does the store charge it's customers for the skis
Answer:
$85.50
Step-by-step explanation:
57 * .5 = 28.5
28.5 + 57 = 85.5
therefore, the answer would be $85.50
Answer:
85.5
Step-by-step explanation:
Find the surface area of the prism 5 m 5 m 4 m 7 m 6 m
Answer:
136 m²
Step-by-step explanation:
Bottom: 6x7=42
Sides: 5x7x2=70
Triangles: 2x1/2x6x4=24
42+70+24=136
Find the Area of the Shaded Region.
Round to the nearest tenth if necessary.
8 ft
4 ft
4 ft
8 ft
5.6 ft
4.5 ft
14 ft
14 ft
Answer:
the A of the shaded figure is 108.2
Use the pic for more info and I will mark as brainlest
What percent is represented by the shaded area?
Answer:
110%
Step-by-step explanation:
because there are two different squares that represent a whole, each with ten sections, the most reasonable answer would be 110%. I hope this helps you!
Select all the equations where b = 11 is a solution. I need the answer quickly please.
Answer:
c
Step-by-step explanation:
HELP MEE PLSSS I REALLY NEED HELP
Answer: to understand this we need a picture of the triangle, but without it I know that the only answer that is correct is the 3rd
Step-by-step explanation:
WILL GIVE BRAINLST
hAVE A GOOD DAY
Answers:
9) 16/100 = 8/50 = 4/25
10) >
A combination of numbers and operations is called formula: true or false?
Answer:
true
Step-by-step explanation:
its actually false
True, A combination of numbers and operations is called formula.
What is an expression?Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
We have to given that;
A combination of numbers and operations is called formula.
Now, We know that;
The formula is made by the combination of numbers and operations.
Let an example of a formula as;
⇒ (a + b)² = a² + 2ab + b²
Hence, We get;
The above formula is made by the combination of numbers and operations.
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Find the area of the following figure.
18in +21in + 17in + 9in =
A. 555 in2
B. 531 in2
C. 612 in2
B. 540 in2
Answer:
The answer is B- 531^2
Step-by-step explanation:
l m f a o
your
pfp
The solution is, the area of the following figure is 360 in^2.
What is area ?Area is the measure of a region's size on a surface. The area of a plane region or plane area refers to the area of a shape or planar lamina, while surface area refers to the area of an open surface or the boundary of a three-dimensional object.
here, we have,
For this case we have that by definition, the area of a rectangle is given by:
A = l*w
In this case, the rectangle is 18 in side, & 21 in.
then:
A = 18*21
= 378
On the other hand, the area of a triangle is given by:
A = 1/2 b * h
Where:
b: It is the base of the triangle
h: It is the height
We have according to the figure that:
b = 21 - 17 = 4
h = 18 - 9 = 9
So:
A = 1/2 *4 *9
=18
Finally, the area of the figure is:
378 - 18
=360
Answer: The solution is, the area of the following figure is 360 in^2.
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HURRY PLEASE!! I WILL GIVE BRAINLIEST
Answer:
X=2
Step-by-step explanation:
Answer:
x=8
Step-by-step explanation:
x + 2 - 2 = 10 - 2 subtract 2 from both sides/ simplify x = 8
х
Find the missing y value.
у
0 0
1
1
2 -6
3 -9
4-12
5-15
Answer:
Step-by-step explanation:
3-9 happy to help :)
Plz whoever has the best answer i'll give brainliest.
Answer:
Hmmm... There's no question which leads to the reasoning that there is no answer.
Step-by-step explanation:
There are 9 students entering the school district's science project with all students having an equal chance
of winning. There are medals for 1st, 2nd, and 3rd place. In how many different ways can the medals be
awarded?