Answers
Answer:
d. 7.3
Step-by-step explanation:
To get the standard deviation of a population of data, first take the sum of all the values, and divide it by the count to get the mean (average).
75 [1] + 90 [2] + 75 [3] + 80 [4] + 90 [5] + 80 [6] + 100 [7] + 85 [8] + 80 [9] + 85 [10] = 840.
Then divide by the count which is 10.
840/10 = 84 [This is the mean of the data.]
Then subtract every point of data from the mean and square it:
(75-84)^2 + (90-84)^2 + (75-84)^2 + (80-84)^2 + (90-84)^2 + (80-84)^2 + (100-84)^2 + (85-84)^2 + (80-84)^2 + (85-84)^2 = 81 + 36 + 81 + 16 + 36 + 16 + 256 + 1 + 16 + 1 = 540.
Then to get the variance, divide this all by the count.
540/10 = 54 [This is the variance of the data.]
Then all you have to do to get the standard deviation is take the square root of the variance.
√54 = 3√6 ≈ 7.3 [This is the standard deviation of the data.]
Related Questions
Write a division equation to represent this model
Answers
Answer:
see below
Step-by-step explanation:
6/8 of 8 equal parts = 6
3/4 of 4 equal parts = 3
Ali bought 16 packs of cola each pack had 6 cans he drank 9 cans how many left?
Answers
Answer:
87
Step-by-step explanation:
16 × 6 = 96 cans
96 - 9 = 87
Answer:
87
Step-by-step explanation:
V 11. What is the result of multiplying 2.5 x 10 10 by 3.5 x 10 -7
Answers
Answer:
(2.5 x 10^10) x (3.5 x 10^-7) <--- When multiplying, numbers can be arranged in any order.
= (2.5 x 3.5) x (10^10 x 10^-7) <--- When you multiply numbers with the same base, add their exponents.
= 8.75 x 10^3
Step-by-step explanation:
10 + 3x = 2(3 + 4) +5
Answers
you’re welcome !!!
Answer:
x=3
Step-by-step explanation:
10+3x=2(3+4)+5
3x=2(7)-5
3x=14-5
3x=9
x=3
You're welcome sir
7x-3x+7=3(x-4)+20 is it a one solution
Answers
a librarian arranges 4356 books in rows , such that the number of rows is equal to the number of books in each row , find the number of books in each row.
Answers
Answer:
66
Step-by-step explanation:
Given that:
Total Number of books = 4356
Number of books in a row = number of rows
Let number of rows = b
Then number of books in each row = b
Total number of books = (number of rows * number of books per row
Hence,
4356 = b * b
4356 = b²
Take the square root of both sides
Sqrt(4356) = b
66 = b
Number of books in each row = 66
Find the domain of the function expressed by the formula: b y= 1/x −7
Answers
Answer:
All real numbers except 7
Step-by-step explanation:
gimme the formula :)
50 Point Bounty :)
Answers
Answer:
[6, 10]
Step-by-step explanation:
Let the weight of a pen be x
Then its weight can be between
8 - 2 = 6 g and 8 + 2 = 10 g
This can be shown as
8 - 2 ≤ x ≤ 8 + 2
6 ≤ x ≤ 10
x = [6, 10]
i think....
Use the given x and y values to write a direct variation equation
x=5, y=30
Answers
Answer:
y=6x
Step-by-step explanation:
direct variation equation is like y=kx (k: constant)
substitute (5,30) to solve k,
30=5k
k=6
Answer:y=6x
Step-by-step explanation:
Domain
1. {×€ R | X ≠ 0}
2. {x + R | x≠1}
Answers
1) Go..
[tex]domain = ( - \infty \:,\: 0) \: U(0 \: ,\: + \infty ) \\ [/tex]
2) Go...
[tex]domain = ( - \infty \: ,\: 1)U(1 \: ,\: + \infty ) \\ [/tex]
_________________________________
And we're done.
Thanks for watching buddy good luck.
♥️♥️♥️♥️♥️
A flat screen television measures diagonally 40 inches and 24 inches in length. What is the width of the television?
Answers
Answer:
The width of the Television is 32 inches.
Step-by-step explanation:
It seems as if the hypotenuse of the triangle is 40 inches, and one of the side lengths of it is 24 inches.
a2+b2=c2
So if we square 40 we get 1600, which is c2
If we square 24, we get 576, which is a2.
Then you solve, 576+b2=1600
you get b2=1600
Then you get the square root of both sides which in turn gives you the answer
b=32, which is the width of the television.
Step-by-step explanation:
use the pythagorean theorem c^2 = a^2 + b^2 diagonal is the hypotenuse...
40^2 = 24^2 + b^2
b^2 = 40^2 - 24^2
b =
[tex] b = \sqrt{40 {}^{2} - 24 {}^{2} } [/tex]
Help answer this please!!!!!!!!!
Answers
Answer:
210 yards
Step-by-step explanation:
You are told that the two triangles (trails) are similar (since Perry wants to construct a similar trail to Hillsville's) this means that there is a scale factor meaning the length of one side of the Hillsville trail * scale factor = length of corresponding side of Perry's trail)
1. One side of the Hillsville trail that measures 400 yards corresponds to the 280 yard side of Perry's trail so the scale factor is
280/400 -> 7/10
2. Use the scale factor to find n since you know that the length of one side of the Hillsville trail * scale factor = length of corresponding side of Perry's trail
n = 300 * 7/10 -> n = 210
Round 5,896,487 to the
nearest ten-thousand.
Answers
Answer:12
Step-by-step explanation:
u half to round it to the nerest hundreths and than multiplye it by 4
Answer: 5,900,000
Step-by-step explanation: 5,900,000 ~ 5,896,487 ( 800,000) Round it ~ = 5,900,000
5.
Evaluate f(x) = -2x2 -4 for x = 3.
O -10
O -18
10
-22
Answers
9514 1404 393
Answer:
-22
Step-by-step explanation:
Put the value of x where x is and do the arithmetic.
f(3) = -2(3)^2 -4 = -2·9 -4 = -18 -4
f(3) = -22
2.Ricky has $100 to spend and wants to order some DVDs on the internet. Each DVD costs $15.00, and
shipping for the entire order is $10.00. What is maximum number of DVDs he can afford
Answers
Answer:
He can get 60 dvds
Step-by-step explanation:
This is why he can get 60 dvds Because 15x6=90 and 10 for shipping make it 100 exactly.
Zubair Habib has been making payments on his 14% motorcycle loan for what seems like forever! Zubair made a payment June 1. His balance after that payment was $1,492.33. Zubair just got a $3,000 bonus from his employer and decides to use part of the money to pay off the loan on June 18. Calculate the payoff amount.
$1,492.33
$1,502.06
$1,482.60
$1,502.63
Answers
Answer:
B.) 1,502.06
Step-by-step explanation:
18-1=17
1492.33*14%*(17/365)+=9.731
1492.33+9.731= 1502.061 Don't round up.
I assume you're in Buss Math with me, trust me man this stuff is easy if you read the text book it shows you everything. Not to mention she gives out the textbook answers and you can use their examples to help.
Can someone help me please??
Determine the intercept of the graph.
Determine the x- and y-intercepts of the graph of
x + 3y = 9
Then plot the intercepts to graph the equation.
Answers
Answer:
x- intercepts = 9
y- intercepts = 3
help pleaseeeeeeeeee
Answers
Answer:
3/-2
Step-by-step explanation:
All I did was put - 3/2 into my calculator and got the answer. I than found the answer for the rest of the fractions and only the first one equals to - 3/2.
what is the slope of this line?
Answers
Answer:
-5/2
Step-by-step explanation:
Perform the indicated row operation
Answers
Answer:
0, 10, 8, 2
Step-by-step explanation:
Answer:
0 10 8 2
Step-by-step explanation:
edg 2021
find the cost of 4 1/3 m of cloth at $ 40 1/2 per metre.
Answers
Answer:
4 1/3 = 4.33 and 40 1/2 = 40.50Then, 4.33 × 40.50 =175.365Step-by-step explanation:
The Answer is 175.365..Thank you ☺️☺️
whats 8 and 2\5 as an improper fraction
Answers
it is very easy first multiply (8*2) then our ans 16
then add 16 + 5 = 21 21\5
answer 21\5
common factor of 35 and 49 is
Answers
Answer:
7
Step-by-step explanation:
35 / 7 = 5
49 /7 = 7
Answer: 7
Step-by-step explanation:
What is the domain of y = csc(x)?
all real numbers
77
all real numbers except na +
where n is any integer
2
all real numbers except na, where n is any integer
all real numbers greater than 1 or less than-1
Answers
C.
ll real numbers except npi, where n is any integer
on edg2020
Y-3=2x in slope intercept form
Answers
Slope int form is y=Mx+b
So you have to add three to both sides to get the y alone
How do you round 1.9046 to the nearest thousandth.
Answers
Six is greater than five so you add 1 to the nearest thousandths means to your left and that became 1.905
The distance from the floor of one level of the building to the floor of the level above it is 9 ft and 3/8 in. If the distance from the floor to the ceiling is 8 ft 2 and 1/2 in, how thick is the space between the ceiling of one floor and the floor of the level above it.
Answers
Answer:
Hope this solution helps you
show your work
10n = 40
Answers
Answer:
4
Step-by-step explanation:
10n=40
10n/10=40/10
n=4
n = 4
Then, We know,
10n = 40
10 * 4 = 40
40 = 40 (True)
Would someone help me to understand this math. Thank you
LINES & LINE SEGMENTS ASSIGNMENT
Plot the following points on the number line below:
A: -25 B: -17 C: -13
D: -1 E: 4 F: 11
G: 16 H: 23 I: 25
Using the points and number line from the problem above, find each of the following. The first one is done for you.
a) BD = | -17 – (-1) | = | -17 + 1 | = | -16 | = 16
b) AE
c) EF
d) GI
e) CH
f) BG
g) CF
h) AC
Answers
Answer:
16, 29, 7, 9, 36, 33, 24, 12
Step-by-step explanation:
The distance between two points on a number line is the magnitude of the difference between their coordinates. In general, that means you can subtract the coordinate of the left point from the coordinate of the right point to find the distance.
Here, the points are in alphabetical order on the number line, left-to-right, as are the letters in the segment names. So you subtract the coordinate of the first point of the name from the coordinate of the last point in the name.
This is 8 simple subtraction problems.
a) D - B = -1 -(-17) = 16
b) E - A = 4 -(-25) = 29
c) F - E = 11 -4 = 7
d) I - G = 25 -16 = 9
e) H - C = 23 -(-13) = 36
f) G - B = 16 -(-17) = 33
g) F - C = 11 -(-13) = 24
h) C - A = -13 -(-25) = 12
_____
If you think of it as mileposts on a highway, it should be no surprise that the distance between milepost 4 and milepost 11 is 11 - 4 = 7 miles.
solve for x 3x+10 3x -28 will mark brainest answers are 1. 33 2. 34 3. 35 4. 36 ty so much 1 left godbless
Answers
Answer:
1. x = 33Step-by-step explanation:
3x+10 + 3x -28 = 180
3x + 3x = 180 + 28 - 10
6x = 198
x = 198/6
x = 33
Answer:
33
Step-by-step explanation:
By the same side interior angle theorem, we can find that 3x + 10 and 3x - 28 are supplementary. Knowing this, we can make the equation:
(3x + 10) + (3x - 28) = 180
Now we can solve for x. Combine like terms.
6x - 18 = 180
Add 18 from both sides.
6x = 198
Divide both sides by 6.
x = 33
So the value of x would be 33.
I hope you find my answer and explanation to be helpful. Happy studying.
