Answer:
A. The teacher conducted an observational study by comparing the performance on the test of those who completed their review worksheets to those who did not complete their review worksheets.
The statement that best describes the method how the teacher likely came to the specified conclusion is: Option A. The teacher conducted an observational study by comparing the performance on the test of those who completed their review worksheets to those who did not complete their review worksheets.
When do we perform observational study, sample survey, controlled experiment, or random experiment?Observational study is usually chosen when the researches the system is likely to produce different result if interfered. Sample survey is done if the population is too big to analyze or destructible as the analysis occurs.Controlled experiment is done manually, specifically to deduce conclusions. Its steps are fixed.Random experiment is done specifically to deduce conclusions, but it is done in a random manner.In the case of testing about test scores, teacher can't use random or controlled experiment as the teacher would more likely work with real data of test scores instead of students faking it.
The sample survey is not needed as getting test scores doesn't destroy them, nor the population of students is too high(assuming math class has small number of students (usually under some hundreds) ).
Observational study is best choice here, and this is done on all students by observing how much students achieved in scored in test and relate it with them completing the review worksheets or not.
Thus, the statement that best describes the method how the teacher likely came to the specified conclusion is: Option A. The teacher conducted an observational study by comparing the performance on the test of those who completed their review worksheets to those who did not complete their review worksheets.
Learn more about observational study here:
https://brainly.com/question/14410103
6(3b-5) b=5
is the value 60
Answer:
Yes
Step-by-step explanation:
6((3×5)-5)
6(15-5)
6(10)
60
Hope this helps!! :)
Mean:? Median:? Mode:? Range:? 5,28,16,32,5,16,48,29,5,35
Answer:
21.9 mean
22 median
43 range
5, appeared 3 times mode
Step-by-step explanation:
Answer:
mean: 21.9 median: 22 mode: 5 range: 43
Step-by-step explanation:
First you put all the numbers from least to greatest.
5, 5, 5, 16, 16, 28, 29, 32, 35, 48
To calculate mean, you add all of the numbers together and divide by the amount of numbers you have in your data set.
5 + 5 + 5 + 16 + 16 + 28 + 29 + 32 + 35 + 48 = 219
219 ÷ 10 = 21.9
So the mean is 21.9
The median is your middle number in your data set. if your data set has an odd set of numbers (as in the amount of numbers, not the actual numbers in your data set) it would be the number right in the middle; no extra work needed. However, if your data set has an even set of numbers you would have to take to two middle numbers and find the average of those two numbers.
Since your data set has an even amount of numbers that means we have to do it the more tedious way.
Your two middle numbers are 16 and 28, so to find the average of those two numbers we would first have to add them together.
16 + 28 = 44
Then we would have to divide it by 2.
44 ÷ 2 = 22
So, you median will be 22.
To find your mode, you first need to count how many times each number is repeated.
5 - three times
16 - two times
28 - one time
29 - one time
32 - one time
35 - one time
48 - one time
Your mode will be the number(s) who has/have repeated the most.
So, your mode is 5.
To find your range, all you need to do is subtract your lowest number from your highest number. Since your lowest number is 5 and your highest number is 48, all you need is to subtract these two number, and you have your range.
48 - 5 = 43
So, your range is 43.
I know this was a bit long, but I hope this helped. :)
II. The Añejo Rum 45 played 5 games. Find the total of poin
basketteall game and for each player,
Loyzaga J
WAME GAME 1 GAME 2
Jaworski 18
2B
12 15
Isaac 16
12
Gonzalgo 21 15
Distrito 26 24
Mamaril 19 22
GAME 3
12
16
18
24
20.
12
GAME H GAME 5
24
18
16
20
19 15
26 23
21
15 16
21
Answer:
Step-by-step explanation:
alright l like this answer too
A full bag of dog food weighs 512 pounds.
How much dog food do you have if there are 334 bags in the cupboard?
A. 2238 pounds
B. 2114 pounds
C. 2058 pounds
D. 1538 pounds
Answer:
umm
Step-by-step explanation:
HELP NEEDED PLEASE!! WILL GIVE BRAINIEST
Find the mean absolute deviation of the following numbers:
12, 15, 17, 18, 15, 20, 22
Answer:
12 20 22
Step-by-step explanation:
Write the standard form of an equation with p= sqrt 3, phi= 150 degrees. Please explain.
Answer:
I'm sorry but i don't know, but I do know the answer is NOT B
Step-by-step explanation:
Answer:
The answer is C... I took the test and got Answer C.
Sorry Im really late.
Step-by-step explanation:
5) A new car is available in a sedan model and a hatchback model. It is available in six different colors. Customers can choose to add any combination of six optional features. Find the number of possible outcomes.
Rufus has collected 100 pounds of aluminum cans to recycle. He plans to collect an additional 25 pounds each week. In how many week s will Rutus have
a total of 400 pounds of cans?
Answer:
12 weeks
100 / 25 = 4 so we know we need an extra 300 so 4 x 3 = 12, so 12 weeks
Evaluate. Write as a fraction. -(1/2)^4
Answer:
1/16
Step-by-step explanation:
<3
NEED HELP A family traveling home after a reunion Records the time in hours and the distance they are from home in miles based on the scatter plot the family is miles from home after the first 3.5 hours
Answer:
200 miles
Step-by-step explanation:
Which of the following describes the graph of {x | 1 < x < 2}?
Answer:
Which of the following describes the graph of {x|2<x<2}?
no solution
Step-by-step explanation:
Since x is greater than 1, but less than two, this is a line segment with two open points.
O----O
1 2
Im a little stuck can I have some help?
help me thank you whoever is right gets brainliest A carpenter attaches a piece of plywood with a width of 4 feet and a length of p to another piece of plywood that has a width of 4 feet and a length of 8 feet. Which expression represents the area of the combined piece of plywood? A. 4(p + 8) B. 8(p + 4) C. 8(p + 8) D. 4(p + 4)
Answer:
45
Step-by-step explanation:
Answer:
4(p+8)✓
4 = length
p+8 = Width
The varsity soccer team has 20 players. Three of the players are trained to be goalies while the remaining 17 can play any position. Only 11 players can be on the field at once. The coach wants to make sure there is exactly one goalie on the field. How many ways can the coach choose a lineup of 11 players if exactly 1 player must be a goalie
Answer:
The coach can choose a lineup of 11 players in 6,047,981,701,347 different ways.
Step-by-step explanation:
Since the varsity soccer team has 20 players, and three of the players are trained to be goalies while the remaining 17 can play any position, and only 11 players can be on the field at once, and the coach wants to make sure there is exactly one goalie on the field, to determine how many ways can the coach choose a lineup of 11 players if exactly 1 player must be a goalie the following calculation has to be made:
3 x 17 ^ 10 = X
3 x 2,015,993,900,449 = X
6,047,981,701,347 = X
Therefore, the coach can choose a lineup of 11 players in 6,047,981,701,347 different ways.
PLEASE HELP ASAP!! (send me a direct answer too please)
Write an equation for distance and time of a bug crawling across a number line at -3 m/s that crosses the zero at time zero
Answer:
P = -3t
Step-by-step explanation:
Since it starts at time zero, and our velocity is -3m/s, our equation for position could be modeled for time as P = -3t
2 - (4 - 3) and (2 – 4) - 3 what property is it?
Answer:
1 and -2
Step-by-step explanation:
Answer:
Associative property
Step-by-step explanation:
When three or more numbers are multiplied, the answer is the same regardless of the way in which the numbers are grouped.
What percent of the males prefer to watch baseball on the weekend
Answer:
Maybe the answer is 36% not sure.
Find the area of the circle
Answer:
1.8 ft^2
Step-by-step explanation:
Area of circle formula is πr^2
r is 1.5/2 or 0.75
π(0.75)^2
π*0.5625
π=3.14
3.14*0.5625=1.76625
Answer rounded to nearest tenth is 1.8 ft^2
please help what does B equal and C equal
Answer:
b = 133 and c = 47
Step-by-step explanation:
c has the same degree as the opposite side
to find the angle of b
1. supplementary line is 180 degrees
2. subtract 180 - 47
3. answer is 133
(i could be wrong but brainliest??)
200 + 20x ≥ 500 I don't get these
Answer:
x ≥ 15
Step-by-step explanation:
200 + 20x ≥ 500
To solve this inequality, you must first subtract 200 from 500.
500 - 200 = 300.
Lastly, divide 300 by 20.
20x = 300
300 ÷ 20 = 15
Therefore, the value of x is 15.
Answer:
x ≥ 15
Step-by-step explanation:
1. So first of all we can simplify both sides now turning this into 20x+200≥500
2. Next we go ahead and subtract 200 from both sides because that is the opposite of adding, so something like this:
20x + 200 ≥ 500
-200 -200
This equals to:
20x ≥ 300
Now so x can be cancled we will need to divide by 20 because that is the opposite of multiplying(When it shows the x next to a number like this 20x it means that they are multiplyin):
20x ≥ 300
20 20
Now we cance out the left side(x) equaling up to this:
x ≥ 15
I hope this helped you out!
Can someone help me with these ??
Answer:
4. 19+x=23 when x=4
5. (5×8a)+(5×2) is an equivalent to 5(8a+2)
6. 5x=45 x=45/5=9
2x-8=12 2x=20 x=10
40=25+3x 3x=35 x=15
7. 2+(-2) is equal to zero
7-(-10) is positive
24. One leg of a right triangle is 5 inches. The hypotenuse is 9 inches. Find the length of the
second leg.
25. Indicate what number should be added so that the result is a perfect square trinomial:
x? + 16x +
Answer: question 25. Add 16 to complete the square. question 24. Square root of 56
Step-by-step explanation:
I WILL GIVE BRAINLIEST IF ITS CORRECT AND THE BEST ANSWER
Elena is a hairdresser, and she usually charges $35 for a standard haircut. If a costumer leaves a 20% tip for a standard haircut, how much is the tip?
A triangle has an area of 10 square feet. The height is 5 feet. What is the length of the base (in feet)?
Answer:
4 ft
Step-by-step explanation:
[tex]A=\frac{1}{2} bh[/tex]
A=10 h=5
[tex]10=\frac{1}{2} b(5)\\[/tex]
20=5b (multiply both sides by 2)
4=b (divide by 5)
Do you guys know this?
What is the area in square millimeters of the triangle outlined
on the origami figure?
B 9cm
H 1.58cm
9514 1404 393
Answer:
711 square millimeters
Step-by-step explanation:
Assuming your B and H are the base and height of the relevant triangle, the numbers can be put into the area formula to find ...
A = 1/2BH
A = (1/2)(90 mm)(15.8 mm) = 711 square millimeters
A warehouse floor has a perimeter of 6,615 feet. What is the perimeter of the floor in yards?
Answer:
2205
Step-by-step explanation:
Brainliest please!!!
what is the area of the parallelogram ?
A family decided to order salads and a pizza. The pizza cost $10 and each salad costs $4. If the bill was $22, how many salads did they order?
Let x = # of salads ordered.
Answer:
3
Step-by-step explanation:
10+4x
10+12 = 22
so what number times 4 equals 12. So the answer is 3
The boat top speed was 2 miles per hour less then 3/5 the cars top speed. The boats top speed was 73 miles per hour.what was the top speed of the car ?
Answer:
Word Problem. Hmm
The Interpretation of the first expression
Let boat top speed be x and car's top speed be y
x= 3y/5 – 2
From the question
x= 73miles per hr
73= 3y/5 - 2
3y/5 = 73+2
3y/5=75
y= 75x5/(3)
y=125miles per hr.
This is the car's top speed. Thanks