Which measure describes how much a sample mean varies when different samples are chosen?
Answers
Step-by-step explanation:
the most common measure of how much sample mean differ from each other is the standard deviation of the sampling distribution of the mean. this standard deviation is called the standard error of the mean
Related Questions
Tyler runs 8 miles and it takes him 64 minutes. How many miles can he run in 20 minutes?
Answers
Answer:
2.5 miles
Step-by-step explanation:
64/8=20/x
8=20/x
*x *x
8x=20
/8 /8
x=20/8
x=5/2 or 2.5
Since 8 x 8 is 64. We would have thought to multiply 2 x 8 but that leaves us to 16. So if we multiply 2 x 10, that gives us 20.
At a local gym you go to, you either pay $90 fee for a monthly pass, and an additional $4 for each time you decide to go to the gym, or you can pay $13 each time you go to the gym. Write and solve a system of equations for this situation to determine how many times you have to go to the gym in order for it to cost the same amount
A. 90
В. 130
C. 10
D. 5
Answers
Answer: C. 10.
Step-by-step explanation:
Let x = Number of times you have to go to the gym in order for it to cost the same amount.
Given: Monthly pass fee = $90
Additional charge = $4
Total amount = (Monthly fee) + (Number of times) (Additional charge)
Total amount = 90+4x (i)
Payment for each time you go to the gym = $13
Total amount = 13x (ii)
From (i) and (ii) , we get
[tex]13x=90+4x\\\\\Rightarrow\ 13x-4x=90\\\\\Rightarrow\ 9x=90\\\\\Rightarrow\ x=\dfrac{90}{9}\\\\ \Rightarrow\ x= 10[/tex]
Hence, the number of times you have to go to the gym in order for it to cost the same amount= 10
Hence, the correct option is C. 10.
the bottom sides of two similar triangles are_______ sides
Answers
Answer: Proportional
Step-by-step explanation: When to corresponding sides of different triangles are alike, they are considered to be proportional.
Please help as well:
Solve for X
Answers
Answer:
If equal to 90 x is 4
Step-by-step explanation:
please i need helpp ion get math at all
Answers
Answer:
you have to use the Pythagorean theorem. a^2 + b^2= c^2
72^2 + b^2 = 75^2
5184 + b^2 = 5625 (subtract 5184 from both sides)
b^2= 441 (find the square root of each side)
b= 21
On see the inverse Nutrlicative meses have a product of 1. Find the multiplicative inverses of the terms in the first column Show that the given number and its multiplicauve inverse have a product of 1. Then, use the inverse to write each comesponding expression in standard form. The first row is completed for you Multiplicat Proof-Show that Use each inverse to write its
Answers
Answer:
765
Step-by-step explanation:
did this queastion 20 minutes ago
There are 24 students in a classroom and 6 large round tables. How many children should be seated at each table if there must be the same number of children at each table? Show your work. HELP PLEASE!!!!!!
Answers
Answer:
4 students in each table
Step-by-step explanation:
24 students
6 desks
24 students split into 6 groups
24 divided by 6
= 4
4 students in each table
6 2/3 divided by 2 6/7
Answers
PLEASE HELP ANSWER!!
Answers
Answer:
the 3rd one
Step-by-step explanation:
Answer:
Discontinuous
Step-by-step explanation:
Can you measure 4 gallons of water using a 3 gallon jar and a 6 gallon jar?
Answers
Answer:
yes just fill up the 6 gallon jar up to the 4 galon mark
Step-by-step explanation:
1.) Solve the system of equations by method of elimination. Show all your work.
2x + 4y = 8
10x – 4y = 16
Answers
Answer:
x=2, y=1
Step-by-step explanation:
Add:
2x+4y=8
+10x-4y=16
------------------
12x=24
Divide by 12 on both sides:
x=2
Substitute x with 2 on either 2x+4y=8 or 10x-4y=16 it doesn't matter it will result in the same answer.
(I will do both of them to prove it but you only need to replace x with one of the equation)
For 2x+4y=8
2(2)+4y=8
4+4y=8
Subtract 4 on both sides
-4+4+4y=8-4
4y=4
Divide 4 on both sides:
y=1
For 10x-4y=16
10(2)-4y=16
20-4y=16
-20+20-4y=16-20
-4y=-4
Divide -4 on both sides:
y=1
The answer for both 2x + 4y = 8 and 10x – 4y = 16 are the same showing that it doesn't matter which equation you replace the number with it will still result you in the same answer
Hope this helps!
What is the slope of the line?
Answers
Answer:
The slope of the line is -3/2
3. Your test scores in science are 83 and 87. What
possible scores can you earn on your next test to have
a test average between 85 and 90, inclusive?
Answers
Answer:
Between 85 and 100
Step-by-step explanation:
Getting this will get the average between the required numbers since the average of 83 and 87 is 85, getting 85 will keep the answer at 85 and getting 100 will get the average at 90.
What is Which equation correctly demonstrates the Distributive Property? F. $a\left(b+c\right)=ab+c$ G. $a\left(b+c\right)=ab+ac$ H. $a+\left(b+c\right)=\left(a+b\right)+\left(a+c\right)$ I. $a+\left(b+c\right)=\left(a+b\right)\cdot\left(a+c\right)$
Answers
Answer:
[tex]G.\ $a\left(b+c\right)=ab+ac$[/tex]
Step-by-step explanation:
Given
[tex]F.\ $a\left(b+c\right)=ab+c$[/tex]
[tex]G.\ $a\left(b+c\right)=ab+ac$[/tex]
[tex]H.\ $a+\left(b+c\right)=\left(a+b\right)+\left(a+c\right)$[/tex]
[tex]I.\ $a+\left(b+c\right)=\left(a+b\right)\cdot\left(a+c\right)$[/tex]
Required
Which of the options shows Distributive Property
Distributive property states that
For: [tex]a(b + c)[/tex]
The equivalent is: [tex]ab + ac[/tex]
In other words:
[tex]a(b + c) = ab + ac[/tex] ----- (1)
Having mentioned that;
Next, we compare the list of given options to (1) above
Option G matches (1).
[tex]G.\ $a\left(b+c\right)=ab+ac$[/tex]
Hence, option G correctly demonstrates distributive property
Is 6r + 3w - 2r + 5w equivalent to 4(r + 2w)
Please help I need the answer ASAP
Answers
Which is equivalent to 64 1/4?
Answers
Answer: 2[tex]4\sqrt{x} 4[/tex]
Step-by-step explanation:
A school has 617 students. Each class has between 28 and 32 students. Which is the best estimate of the number of classes in the school?
14 classes
20 classes
30 classes
60 classes
Answers
Answer:
I believe its either 20 or 14
omg I am literally begging you plz help meeee I have no idea what to do and I need to get these correct so please help me!!!! (also plz show your work) don't answer if you don't know what your doing -_-
Answers
Answer:
2) cause both of them is the same thing
3) Side angle side
4) cpct (corresponding part of congruent triangles)
9 + y = 6 I NEED HELP ASAP
5
Answers
Answer:
y=-3
Step-by-step explanation:
Answer:
The answer to this question is -3.
Step-by-step explanation:
9 + y = 6
-9 -9
y = -3
PLEASE HELP!!
What is the slope for runner 1 and runner 2 ?
Answers
What is 10+10=? Please Help :P
Answers
Answer:
Your Answer is 20
Step-by-step explanation:
Add 1 Side Then The Other!
1 0
+ 1 + 0
= 2 = 0
20
Hopes This Helps :)
Doh! How Did This Hurt My Brian?
Wait What Brain?
Answer:
20 :)
Step-by-step explanation:
1+1=2,
And you add the zero.
the other khan academy assignment
Answers
Answer:
(5,-3)
Step-by-step explanation:
difference in x is 5 and in y it is .5 so add those to (0,-3.5) and you get (5,-3)
Plz help it is over due
Answers
Answer:
32/9
Step-by-step explanation:
(4/1) (9/8)=
32/9
will mark brainliest
Select all true statements.
- 25% off the price of a computer. The regular price for each computer is x dollars. The new price is 0.75x.
- An ice cream bar has x calories. The size of the bar is increased by 5%. The new calorie count is 1.95x.
- A store raises the price (P) of a computer monitor by 12%. The new price is P+ 0.12P.
- A cell phone company offers a 30% discount on the price (P) of a new model. The new price is 0.30P
Answers
Answer:
25% off the price
A store
Step-by-step explanation:
2x=90??
btw did you guys see the new battle pass?!?!
Answers
Answer:
fortnite is garbo
Step-by-step explanation:
What is the equation of the line that passes through the point (3,-5) and has a
slope of o?
Answers
Answer:
y = -5
Step-by-step explanation:
slope of 0 means m = 0 in y intercept form y = mx + b.
they have given you (3, -5), plug these in and solve for your equation.
remember, a line that has a 0 slope means it is a horizontal line.
y = mx + b
-5 = 0(3) + b
-5 = b
so you have, y = -5.
subtract. (6a²-7b+3c³+4)-(9a²+6b-3c³+4)
Answers
Answer:
3+3 = 6
6-9 = -3
-7-6= -13
4-4= 0
6c^3 - 3c^2 - 13c + 0
helppppppppp plsssssssssssssssssssssssssssssssssssssssssssssss
Answers
whats the answerrr??..
Answers
Answer:
d is the answer of the question
The distance around a lake is 6 7/12 kilometers. Evan rode his bike 5/6 of the distance around the lake. What is the distance in kilometers that Evan rode
Answers
Answer:
5 35/72 kilometers
Step-by-step explanation:
The distance around a lake is 6 7/12 kilometers. Evan rode his bike 5/6 of the distance around the lake. What is the distance in kilometers that Evan rode
This is calculated as:
Total distance = 6 7/12 km
Evan rode = 5/6 of the distance
Hence:
The distance Evans rode is
5/6 of 6 7/12
= 5/6 × 79/12
= 395/72
= 5 35/72 km(kilometers)