Answer:
Sampling bias
Step-by-step explanation:
Bias refers a prominent problem in statistical analysis whereby one or more analytical factor are favored than the other during an analysis which should be made random. The problem. With Graham's dissertation study is the fact that he failed to randomlyvplace his subjects or observation in the study groups, favoring a particular group with non random subset. When randomization is ejected or missing from an analysis or study, it becomes less and less representative. Here, allotting early Arrivals Into the treatment group has introduced a sampling bias as those who came later, this will also leads to less reproducibility of experiment.
what is the product of 2/1 and (-2/3)?
Answer: -4/3 or - 1 1/3
Step-by-step explanation: 2 times -2 = -4 and 3 times 1 is 3.
Use the calculator to find the value of x for the equation: × + 3.2=6.3
Answer:
x = 3.1
Step-by-step explanation:
Subtract 6.3 - 3.2 to find the value of x. You get 3.1.
Hope it helps!
mq/t=s/v solve for t
Answer:
t = mqv/s
Step-by-step explanation:
see pic for explanation
Which equation is equivalent to x + 8 = 21?
A. (x + 8) × 4 = 21
B. (x + 8) × 4 = 21 ÷ 4
C. (x + 8) × 4 = 21 × 2
D. (x + 8) × 4 = 21 × 4
The equation that is equivalent to x + 8 = 21 is (x + 8) × 4 = 21 × 4
Given the equation
x + 8 = 21To get a similar expression we will either subtract, multiply, divide or add the same constant to both sides of the equation
Multiplying both sides by 4 will give:
x + 8 = 21(x + 8) * 4= 21 * 4Hnce the equation that is equivalent to x + 8 = 21 is (x + 8) × 4 = 21 × 4
learn more on equation here: https://brainly.com/question/13763238
PLEASE HELP ME, CAN SOMEONE HELP.
Answer:
Step-by-step explanation:
Jupiter lighthouse , r=18 miles, A= 2*3.14*r^2
A Jupiter=2*3.14*18*18=2034.72 mi^2
Hillsborough light house, r= 28 miles,
A Hillsb=2*3.14*28*28=4923.52 mi^2
the difference is
4923.52-2034.72=2,888.80
Tan (14)= 6000
side of the
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1
Answer:
question I don't understand what you want to be done herewhat's the q
A bag contains 5 red and 3 bluearble. Two marbles are drawn simultaneously from the bag. DETERMINE the probability that at least one is red.
Answer:
5/8
Step-by-step explanation:
Jack paid $120 to have his bus fixed at an auto-repair shop.
The parts of the bus cost $72, and service was charged at $12
an hour. How many hours was the bus worked on?
Answer:
4 hours
Step-by-step explanation:
72+12x=120 and when you isolate x you get x=4
What is the supplement of a 54° angle?
Answer:
126
Step-by-step explanation:
The supplement of 54° is the angle that when added to 54° forms a straight angle (180° ). So,
54 + x = 180
x = 126
Is 3 a rational number
Answer:
Yes
Step-by-step explanation:
Rational numbers are numbers that can actually be written down and end at some point, such as 3, 4, 6, 10, etc. Some numbers that aren't rational are numbers like π, which are never-ending.
In the typing world, 80 words per 5 minutes is considered acceptable.
How many words per minute is this?
Answer:
16
Step-by-step explanation:
Answer:
16
Step-by-step explanation:
HELP ME PLEASE ITS DUE TODAY AT 8
Answer:
It is okay to solve a question not a question paper better split the questions before asking
Answer:
Corresponding sides have same ratio
Q1
a) LM/LN = EF/EG = 12/13 = 0.92b) MN/LM = FG/ EF = 5/12 = 0.42c) MN/LN = FG/ EG = 5/13 = 0.38Q2
XY/WX = ST/RS = 25/18 = 1.39PLZ HELP I’LL GIVE BRAINLIEST
Determine the maximum number of zeros of the polynomial function -9x^2 + 2x + 2.a.3c.1b.2d.4 Please select the best answer from the choices providedABCD
Answer:
b
Step-by-step explanation:
f(x) = -9x² + 2x + 2
Discriminant = 2² - 4(-9)(2) = 76
The discriminant is positive, so there are two distinct roots.
please help using elimination !
7x+2y=24 8x+2y=30
Answer:
-x=-6
x=6
7(6)+2y=24
42+2y=24
2y=24-42
2y=-18
y=-9
Step-by-step explanation:
Select all the logarithmic expressions that have been evaluated correctly, to the nearest thousandth.
The logarithmic expressions are log6 with base 3 and log5 with base 4.
What is logarithmic function?
It is the inverse of the exponential functions. It is equal to y=㏒x.
How to solve logarithmic functions?
A) log 8 with base 3=log8/log3=0.903089987/0.4771212547=1.8927
B) log 6 with base 3=log6/log3= 0.77815125038/0.4771212547=1.6309
C) log 5 with base 4=log5/log4=0.69897000433/0.60205999132=1.1609
D) log 32 with base 2=log32/log2=1.50514997832/0.30102999566=5
E) log 7 with base 4=log 7/ log 4=
=0.84509804001/0.60205999132=1.403
Hence the required logarithmic expressions be on B and C.
Learn more about logarithmic expressions at https://brainly.com/question/13473114
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The ratio of toy cars to toy airplanes in Drew’s collection is 5:2.
Which statements are true? Select all that apply.
For every 5 toys, 2 are cars.
For every 5 toys, 2 are airplanes.
For every 7 toys, there are 5 toy cars.
For every 7 toys, there are 2 toy airplanes.
For every 5 toy cars, there are 2 toy airplanes.
Answer:
For every 7 toys, there are 5 toy cars.
For every 7 toys, there are 2 toy airplanes.
For every 5 toy cars, there are 2 toy airplanes.
Step-by-step explanation: For anyone who is interested, there is 5 toy cars and 2 toy airplanes. 5+2 = 7. (That equals the total amount of toys) Using that information, A and B would be incorrect.
The triangles are similar. Find side length x.
Answer:
Step-by-step explanation:
Eli weighed 6 pounds, 5 ounces when he was born.
How many ounces did he weigh?
I’M TIMED PLZ HURRY
What times what equals -40 and add to make -3
Answer:
-8 and 5
Step-by-step explanation:
-8 × 5 = -40
-8 + 5 = -3
HELP HELP
PLZ I WILL MARK YOU BRILL
Answer:
1) 55 2)60-80 3)95 4)92.5(mean), 92.5 (median), 95 (mode) 5) the outlier greatly offsets the data as it is no where near the other data points.
Step-by-step explanation:
What is the slope of the line?
y + 2 = -22 - 3)
Answer:
Slope is 0
Step-by-step explanation:
Simplify to get y= -27
then you can see that the slope is 0
Hope it helps :)
The statement "a>2 and a <5" is true when a is equal to what?
A.) 3
B.) 5
C.) 2
D.) 10
Answer:
A
Step-by-step explanation:
As 2 < a < 5, only option A suffices this condition, because 2 < 3 < 5.
Each day, you run on a treadmill for $r$ minutes and lift weights for 15 minutes. Which expressions can you use to find how many minutes of exercise you do in 5 days?
A hot air ballon is descending at a rate of 100 feet per minute. After 6 minutes, the hot air ballon is 200 feet above the ground.
Answer:
800 feet i think but is this the full question
Step-by-step explanation:
Please help 30 points. Don't put bad answers and show your work please.
Answer:
A) -4
Step-by-step explanation:
There are two ways of solving this:
1.) Plugging in the answer choices
Since the equation needs to be equal to or less than 1 (this is due to the less than or equal to sign: ≤)
You will then set the equation: -2x-6 ≤ 1
You will then take each answer choice and plug it into the original equation.
Plug in -4: -2(-4)-6 ≤ 1 this will result in 2 ≤ 1
Plug in -3: -2(-3)-6 ≤ 1 this will result in 0 ≤ 1
Plug in -2: -2(-2)-6 ≤ 1 this will result in -2 ≤ 1
Plug in -1: -2(-1)-6 ≤ 1 this will result in -4≤ 1
The only one that is not true is when you plug in x=-4 into the equation -2x-6. This results in the equation being equal to 2. 2 is not less than 1, making the equation false.
Method 2: Solving the inequality
You can essentially solve for x like a normal inequality.
Instead of solving for -2x-6 = 1, we are doing -2x-6 ≤ 1.
First: Add 6 to the right side
-2x ≤ 1+6 --->>>> 2x ≤ 7
Second: Divid both sides by -2
***Note: When you divivde by a negative when solving an inequality, you must switch the sign. ***
x ≥ -3.5 (hence the sign swtiches from ≤ to ≥ since we divided by a negative value in the equation)
x ≥ -3.5 states that any number greater or equal to -3.5 will work. -4 is less than -3.5, thus it will not satisfy the inequality.
Question 10 Multiple Choice Worth 4 points)
(02.05 LC)
Which of the following statements best describes the effect of replacing the graph of y = f(x) with the graph of y = f(x - 2)?
The graph of y = f(x) will shift left 2 units.
The graph of y = f(x) will shift right 2 units.
The graph of y = f(x) will shift up 2 units.
The graph of y=f(x) will shift down 2 units.
Answer:
Your answer is A
Step-by-step explanation:
The graph of y = f(x) will shift left 2 units.
Select the correct answer. Thank you
Answer:
I think a
Step-by-step explanation:
Write an equation in slope-intercept form for the line between (2,7) and (6, 19)
Answer:
Step-by-step explanation:
(19 - 7)/(6 - 2) = 12/4= 3
y - 7 = 3(x - 2)
y - 7 = 3x - 6
y = 3x + 1
Solve for y:
7y + 3y - 2y + 12 = 60
