Answer:
C
Step-by-step explanation:
AP Classroom says so
The correct option should be C: "The variance of the sampling distribution of the estimator will increase" because the sample size is decreased from 2500 to 1500.
Given information:
The director originally planned to obtain a random sample of 2500 people who purchased the product.
However, because of budget concerns, the sample size will be reduced to 1500 people.
Now, the variance of the sample distribution can be written as,
[tex]\dfrac{\sigma^2}{n}[/tex] where n is the sample size.
So, the variance is inversely proportional to the sample size.
Here, we can conclude that with an increase in sample size, the variance will decrease and vice versa.
Therefore, the correct option should be C: "The variance of the sampling distribution of the estimator will increase" because the sample size is decreased from 2500 to 1500.
For more details, refer to the link:
https://brainly.com/question/7635845
How to solve math word problems if a jar of peanut butter costs 3.89 in rays market but costs 1.3 times as much in jims market charge for peanut butter?Round to nearest hundredth and enter only the value.
Answer: $5.06
Step-by-step explanation:
Jim charges 1.3 times the price that Rays charges so Jims market price for Peanut butter is:
= 3.89 * 1.3
= $5.057
= $5.06
Find an expression which represents the difference when (10x + 8) is subtracted
from (-8x – 10) in simplest terms.
Answer:
2x-2
Step-by-step explanation:
just combine like terms
8-10 = -2
10x-8x=2x
Answer:
−18x−18
Step-by-step explanation:
The local Toyota dealership pays an average of $9,260 with a standard deviation of $1099 for used car trade-ins. They sell new cars at an average of $28,451 with a standard deviation of
$3392. Assume independence of new car and trade-ins. What are the mean and standard
deviation of the revenue this dealership should expect when a person trades in a car and purchases a new one?
Answer:
B i think
Step-by-step explanation:
3. The area of a triangular-shaped garden is 72 square feet and the height is 24 feet. Find the base.
Answer:
3
Step-by-step explanation:
The usual method of finding the area of a shape is base times height. Since there is no base, divide 72 by 24. You get 3. Use 3 as your base.
ASAP MATH!! MARKING BRAINLIST!!
this might seem easy but I cant get it around my headd
Answer:
40¢ or $0.40
Step-by-step explanation:
$2÷5=40¢
CAN SOMEBODY PLEASE HELP ME
Answer:
g(x)=(x^2-2)-2
Step-by-step explanation:
Because the numerator and denominator of the fraction are equivalent, the value of the fraction is __________ o Multiplying by 1 does not change the quantity, but using an equivalence will change the units (or label) o In order for units to cancel they must be in _____________________________ of the fraction.
Answer:
The answer is below
Step-by-step explanation:
A fraction is the ratio of the numerator to the denominator. It is given as:
Fraction = numerator / denominator.
If both the numerator and denominator are equal then:
numerator = denominator
Fraction = numerator / denominator = numerator / numerator = 1
When using fractions with units, if you want the units to be canceled out the both the numerator and the denominator must have the same units.
Because the numerator and denominator of the fraction are equivalent, the value of the fraction is 1. Multiplying by 1 does not change the quantity, but using an equivalence will change the units (or label) o In order for units to cancel they must be in both numerator and denominator of the fraction,
b is inversely proportional to a When a = 4 , b = 6 Determine the value of b when a = 8
Answer:
3
Step-by-step explanation:
b is inversely proportional to a, that means when ne increases the other decreases. 4 times 6 is 24
so when is 8, b is 24/8 which is 3
-2/9 - (-1/3 divided 3/5)
PLEASE HURRYY
Answer:
1/3
Step-by-step explanation:
-1/3 divided by 3/5 = -5/9
-2/9 - -5/9 = 1/3
Answer:
-1/45
Step-by-step explanation:
Rewrite this as:
-2/9 - (-1/5), or -2/9 + 1/5
Here the LCD is (9)(5) = 45. Rewriting the above expression, we get:
-10/45 + 9/45 = -1/45
what is the answer to this equation 96(x+52) im trying to find the value of z
Answer:
so... trying to get X
this 96(x+52) can't get x
but 96+(x+52)=180 comes out to be x=32
please help with these 3!! :D
thanks!
Find the value of p and q such that
2x^2 - 4x + 3= 2 (x-p)^2 + q
PLEASE ANSWER!!!
Answer:
The values of p and q such that 2·x² - 4·x + 3 = 2·(x - p)² + q, are;
p = 1, q = 1
Step-by-step explanation:
The given equation are;
2·x² - 4·x + 3 = 2·(x - p)² + q
By expanding the right hand side of the equation, we have;
2·x² - 4·x + 3 = 2·(x - p)² + q = 2·x² - 4·p·x + 2·p² + q
2·x² - 4·x + 3 = 2·x² - 4·p·x + 2·p² + q
Comparing the coefficient of x in both equations, gives;
2·x² + (- 4)·x + 3 = 2·x² + (- 4·p)·x + 2·p² + q
-4 = -4·p
∴ p = -4/(-4) = 1
p = 1
Comparing only the constant terms (terms not multiplied by "x" or "x²"), we get;
3 = 2·p² + q
Substituting the value for "p" obtained above (p = 1 ) in the previous equation, we get;
3 = 2 × 1² + q = 2 + q
∴ q = 3 - 2 = 1
q = 1.
what is the solution to this linear equation.
-4 + bx = 2x + 3(x + 1)
if b = 3 what is the solution?
a cone with a height of 8km and radius of 4km. What’s the volume!??? Help needed!!! Will mark brainliest!
Answer:
134.94128...
Step-by-step explanation:
Volume of a cone = 1/3 x height x pi x radius^2
1/3 x 8 x pi x 4^2 = 134.04128...
I will give brainliest to the best answer
Evaluate each expression using the Hierarchy of Operations
Only real answers - Thank you!
Q 1: 1/9 · (1/2)³
Q 2: 1/8 · (1/3)²
Answer:
1: 0.027
2: 0.01375
Step-by-step explanation:
Answer:
1/72 and 1/81
Step-by-step explanation:
Using the order of operations (PEMDAS):
Question 1:
You solve the exponent first: 1/9 * 1/8
Multiply: 1/72 ([tex]0.0138[/tex] repeating)
Question 2:
You solve the exponent first: 1/9 * 1/9
Multiply: 1/81 (0.0123456...)
a large amount of peanuts was divided equally into six small bags to total amount and total number of peanuts fee was the reading 42 which statement could be used to write an expression in there and find the number of females that ended up in the same.I need you bag check all that apply.
Answer:
i also had a seizure reading that
Step-by-step explanation:
.
3/4n - 18 = 1/4n - 4 ( equation )
Answer:
n=28
Step-by-step explanation:
hope this helps!
Can someone please help me? I just need to get the variable alone to see what it equals, if it doesn’t have a solution, or if it can be any number. Show your work if possible :P
13-3p = -5(3+2p)
Fank chus
Answer:
the answer would be p= -4
13-3p = -5(3+2p)
13-3p = -15-10p
13 = -15-7p
28 = -7p
p = -4
The length of a rectangle is nine more than twice the width. If the perimeter is 78 inches, find the dimensions.
PLEASE HURRY !! Which point is located at (0,5)?
Answer:
C
Step-by-step explanation:
Simplify: (2)(18) + (-2 + 5)(-1)
Answer:
33
Step-by-step explanation:
First, simplify the parentheses:
(2)(18) + (3)(-1)
Then multiply any terms:
36 + (-3)
Solve:
33
Hope this helps!
Answer:
36+-3
Step-by-step explanation:
(2)(18)+(-2+5)(-1)
(36)+(3)(-1)
(36)+(-3)
(33)
pythagorean theorem please help
Answer:
Pythagorean theorem: a^2 + b^2 = c^2
c is always the hypotenuse (longest side of the triangle)
Plug the numbers in:
17^2 + ?^2 = 19^2
?^2 = 19^2 - 17^2
?^2 = 361 - 289
?^2 = 72
? = 8.48528137424
can someone please help me.
Answer:
Step-by-step explanation:
One
The input is the top line. B is the output when multiplied by 4
B = 4A
Input A 12 15 47 34
Output B 48 60 188 136
Rule: 12 * 4 = 48; 15*4 = 60
Check the other two.
Two
B = A/2
Input A 44 56 18 26 20
Output B 22 28 9 13 10
Rule: 44/2 = 22; 56/2 = 28
Check the others.
What does COP mean? How do you execute it?
Answer:
COP: Coefficient Of Performance
Execute: A COP is a ratio that measures the amount of energy a heating/cooling appliance outputs to the amount it consumes. (maybe this is how you can plan it, execute means different things, and I think what they mean is how you can plan it....
Maybe this would help?!
Have a supercalifragilisticexpialidocious day!
Choose the most appropriate unit to measure a computer.
Answer:
I believe it would be inches.
Step-by-step explanation:
When companies are describing screen size, they always measure from one corner to the other and use inches.
Please help I will give brainliest
Answer:
What do u have to do. I don’t see a point on the graph
Step-by-step explanation:
Answer:
might have to draw a line through it but here are the points
Step-by-step explanation:
Does anyone know this???
Answer:
I wrote an equation of 10x+99= 189
so basically 189-99 is 90/10 = to 9
so x=9
ur welcome lol
Answer:
9
Step-by-step explanation:
99+10x=189
189-99=10x
90=10x
x=9
Find the difference of the two expressions (1/2 x +2) - (2/3 x -6)
Answer:
-1/6 + 8
Step-by-step explanation:
(1/2x + 2) - (2/3x - 6)
apply distributive property
1/2x + 2 - 2/3x + 6
add like terms. add 1/2x and -2/3x together and then add 2 and 6 together
3/6 + 2 - 4/6 + 6
-1/6 + 8
-1/6 + 8 is your answer. i hope this helps, let me know if i got something wrong :)
Which statement best describes the graph
The first option
you read the graph from left to right so x is increasing. If you look at y, it's decreasing.
for each y-value that decreases by 0.5, x-values increase by 1
The first option is correct, As the x- value increases by 1, the y-value decreases by 1/2; the x-intercept is -1.
What is a function?A function is defined as a relation between the set of inputs having exactly one output each.
we can from the graph from left to right is that x is increasing. If you look at y, it's decreasing.
And for each y-value that decreases by 0.5, x-values increase by 1.
Thus, As the x- value increases by 1, the y-value decreases by 1/2 ; the x-intercept is -1.
Learn more about function;
https://brainly.com/question/12431044
#SPJ1
Can someone help me?
150/-5 x -4
Answer:
120
have a good day and make sure to say thanks :]
