Answer: 0.74
Step-by-step explanation:
Standard Deviation, σ: 0.73702773119009
Count, N: 9
Sum, Σx: 53
Mean, μ: 5.8888888888889
Variance, σ2: 0.54320987654321
Steps:
σ2 =
Σ(xi - μ)2
N
=
(5 - 5.8888888888889)2 + ... + (7 - 5.8888888888889)2
9
=
4.8888888888889
9
= 0.54320987654321
σ = √0.54320987654321
= 0.73702773119009
im giving brainiest, extra points, full stars, and a thank you on both. dont guess
Answer: 1/13
Step-by-step explanation:
1/13 is the simplest form of 4/52, which is the number of king cards to the number of cards total.
qaaqdeytrrytrutyjtadwtryhb bvff
Answer:
Step-by-step explanation:
ah, yes. I strongly agree qaaqdeytrrytrutyjtadwtryhb bvf
thqanks for the points have a great day B)
The number of children per household in the US is strongly skewed to the right with a mean of 3.1 children per household and a standard deviation of 1.2 children per household. A person studying demographics selects an SRS of size n = 40 from the population of all households in the US and calculates the sample mean number of children per household. What is the standard deviation of the sampling distribution of the sample mean?
Round to 2 decimal places.
Answer:0.19
Thats what i got on edge 2020
To be considered 18-karat (18K) gold, a piece of jewelry must be made of 75% pure gold. The higher the karats, the more valuable a piece of jewelry. A jewelry designer is purchasing a large quantity of 18K gold from a new supplier. To see if the new supplier is being dishonest about the karat rating in the shipment, the designer melts a random sample of the gold and conducts a hypothesis test with H0: The proportion of metal that is gold is 75%, and Ha: The proportion of metal that is gold is less than 75%. What is a Type I error and its consequence in this context
Answer:
The gold shipment truly is made of 75% gold, but the designer concludes that it is made of less than 75% gold. The designer will reject the shipment of gold and miss out on an honest business relationship with the supplier.
Step-by-step explanation:
Type I error is defined as the rejection of the true null hypothesis. It is also called as the 'false positive' conclusion or 'false positive' findings. The value of alpha or the significance level determines the probability of making the error type I.
In the context, it is given that for a gold piece to be of 18 karat , the piece of jewelry must be made of 75% of pure gold.
The null hypothesis is, H0: The proportion of metal that is gold is 75%
The alternative hypothesis is Ha: The proportion of metal that is gold is less than 75%.
Thus the type I error is when the gold shipment is made of 75% gold but the jewelry designer rejects the shipment thinking that the shipment is made of less than 75% gold.
Thus it shows the error of type I rejecting the null hypothesis.
What is the value of x when 1/3 x = 9 1/3
Answer:
10 1/9
Step-by-step explanation:
A linear sequence starts
11
20
29
38
Work out an expression for the nth term of the sequence.
The nth term is n+9
Answer:
9n + 2.
Step-by-step explanation:
This is arithmetic with common difference d = 9.
nth term = a1 + d(n - 1) (a1 = 11) 11 + 9n - 9
= 11 + 9(n - 1)
= 9n + 2.
The value of the 9 in 901,532 is how many times the value of the 9 in 157,900?
im pretty sure the 9 is 1000 times the value
Mr Yates has an $80 budget to purchase 72 pair of sunglasses if there is a 6% sales tax rate How much under budget will Mr. Yates be 
Answer:plz answer quick
Step-by-step explanation:
I need this answered
A hot air balloon went from an elevation of 5,038 feet to an elevation of 3,403 feet in 30 minutes. What was its rate of descent? The rate of the descent was ( ) feet per minute.
Answer:
Step-by-step explanation:
In this case, we have a descent of 2,125 feet (initial height of 5,439 - ending height of 3,314). Since it took 34 minutes for the balloon to descend this distance, we divide the descent by the time (2,125/34). This gives us a rate of 62.5 feet per minute.
That means that the balloon traveled downward 62.5 feet every minute.
find ( f•f)(0)
f(x)=x^2-1
A. 1
B. 0
C. -8
D. -1
Answer:
D
Step-by-step explanation:
Pls help quick I will name brainliest
Answer:
hey:)
for #13:
x= 180-144= 36°
#14:
x= 180-35= 145°
#15:
x= 180-116= 64°
#16:
x= 180-105= 75°
I hope this was helpful:)
someone please helpppp :,)
Answer:
262 in[tex]^{3}[/tex]
Step-by-step explanation:
the equation for volume of a sphere is : [tex]\frac{4}{3}[/tex][tex]\pi[/tex]r[tex]x^{3}[/tex]
so replacing the number of the radius into the equation, it would look like:
[tex]\frac{4}{3}[/tex][tex]\pi[/tex]r[tex]5^{3}[/tex]
which gives you 523.59878 in[tex]^{3}[/tex]
but since it's a hemisphere, you'd divide it in half, which gives you 261.79939.
since you're rounding off to the nearest whole number, you're answer is 262 in[tex]^{3}[/tex]
HELPP plzzzz ——————and thanks no filessssss
The top suface of a desk is composed of 2 rectangles and a triangle. some side lengths of the top surface of the desk are shown
Answer:
Full question?
If I am not mistaken, I have seen this question on brainly before.
With two rectangles connecting two sides of a triangle with lengths 1.5ft and 2.5ft.
This would make area of the surface of the top desk 8.625ft².
Please I need help I need it done by today
Translate this sentence into an equation
The product of donnie’s savings and 3 is 48
Use d to represent Donnie’s savings.
Find the arc length of the partial circle.
Either enter an exact answer in terms of or use 3.14 for
a and enter your answer as a decimal.
Answer:
arc length = radius * central angle in degrees * (PI / 180)
arc length = 7 * 90 * (3.14159265 / 180)
arc length = 10.995574275
http://www.1728.org/radians.htm
Step-by-step explanation:
solve this please ASAP, (√144 + √196) * 2^0 , I will give brainliest for correct answer
Answer:
26
Step-by-step explanation:
square root of 144 is 12, square root of 196 is 14, 12+14 is 26, any number to the 0 power is 1 so 26×1 equals 26.
Answer: 26
Step-by-step explanation:
([tex]\sqrt{144}[/tex] + [tex]\sqrt{196}[/tex]) * 2^0
(12+14) * 1
26
Please help please
One cube has edges n meters long. Another has edges 3n meters long. What is the ratio of the volume of the first cube to the volume of the second cube
Answer:
1:3
Step-by-step explanation:
The second cube is 3x bigger than the first cube, and since all sides of a cube are the same the ratio for the length of the edges will directly transfer over to the ratio of their volumes.
C. 1 : 27
As an example, let's say that n is equal to 1. The volume of the first cube is n*n*n, since n stands for the measurement of each edge. n*n*n=1*1*1=1 cubic meter. Now, onto the second cube. The volume of the second cube is 3n*3n*3n, since 3n stands for the measurement of each edge. 3n*3n*3n=3*3*3 ( since 3n=3*1=3 ) which is equal to 27. The ratio of the volume of the first cube to the volume of the second cube is represented by n : 3n. Substituting the n on both sides for the n in our example, we get a final result and ratio of 1 : 27.
10. A map uses the scale of ã of an inch to represent 3
miles. If the actual distance between two cities is
25 miles, then what is the length on the map?
is x^2+2bx-v^2 a perfect square trinomial?
Answer:
no x² + 5x + c is a perfect square
Step-by-step explanation:
help me pls quick fill it out
Answer
Step-by-step explanation:
in the given pair of linear equations 3x+ay=50 and 9x-21y=15 find thevalue of a for them to be a parallel
Answer:
[tex]3x + ay = 50\\ay = 50-3x\\ay = -3x + 50\\y =\frac{-3x}{a} + \frac{50}{a} \\\\slope = \frac{-3}{a} \\\\9x -21y = 15\\-21y = 15 -9x\\21y = 9x - 15\\\\y=\frac{9x}{21} - \frac{15}{21} \\\\Slope = \frac{9}{21} \\\\Since \ equations \ are \ parallel \ = m_{1} m_{2} = 1\\\\\frac{-3}{a} \cdot\frac{9}{21} = 1 \\\\\frac{-27}{21a} = 1\\\\\\\frac{-9}{7} = a[/tex]
help me pleaseeeeeeeee
The equation of the line shown in the graph is y = ?
Answer:
y = -4x
Step-by-step explanation:
Find the slope (m) and the y-intercept (b) of the line. Thereafter, substitute the value of each into y = mx + b to get the equation of the line.
✔️Find the slope (m) using two points on the line, (-2, 8) and (0, 0):
Slope (m) = change in y/change in x
m = (0 - 8)/(0 - (-2))
m = -8/2
m = -4
✔️Find y-intercept (b):
Y-intercept = 0, this is where the line intercepts the y-axis.
b = 0
✔️Substitute m = -4 and b = 0 into y = mx + b:
y = -4x + 0
y = -4x
NO LINKS OR FILES PLEASE!!! -_-
POINTS!!!
Does anyone do FLVS or the program BUZZ?
(I'M IN 8TH GRADE) If so, can you please help me with 06.02 Factory Workers (History) I really need help :(
Answer:
........................Do the points of the following quadrilateral create a square? A(3,4) B(-3,4)
C(-3,-2) D(3,-2)
1) Yes
2) No
Answer:
Yes
Step-by-step explanation:
You can refer to the photo that I attached.
A group of scientists have been sent on an expedition to test the soil in the Allegheny Mountains. They need to collect samples from nine sites. The route for the expedition is shown in the image. The group starts at P and works its way around to Q, R, S, T, U, V, W, and X, in that order, before returning to P. What is the length of the route?
A.
50 units
B.
52 units
C.
55 units
D.
58 units
E.
60 units
Answer:
52
Step-by-step explanation:
The solution is, Distance between E and F = 8 units
What is distance?The distance between two points is the length of the line joining the two points.
Formula: distance= √(x_2-x_1)²+(y_2-y_1)²
here, we have,
Given:
Coordinate of E = (3,5)
Coordinate of F = (3,-3)
Find:
Distance between E and F
Computation:
Distance = √(x₁-x₂)² + (y₁-y₂)²
Distance between E and F = √(3-3)² + (5+3)²
Distance between E and F = √(8)²
Distance between E and F = 8 units
To learn more on Distance click:
brainly.com/question/15172156
#SPJ3
Complete question:
During an expedition, archeologists find four objects at the positions labeled E, F, G, and H in the image. How far are the artifacts E and F from each other? A. 5 units B. 8 units C. 10 units D. 12 units
Point S is between R and T on RT. Use the given information to write an equation in terms of x. Solve the equation. Then find RS and ST. RS = 2x + 8 ST = 4x + 11 RT = 73
Answer:
RT = 6x + 19 , x = 9
Step-by-step explanation:
Given that Point S is between R and T on RT and RS = 2x + 8 ST = 4x + 11 then
RT = RS + ST
= 2x + 8 + 4x + 11
rearrange
= 2x + 4x + 8 + 11
= 6x + 19
Given that RT = 73
Substitute into the equation
6x + 19 = 73
collect like terms
6x = 73 - 19
= 54
Divide both sides by 6
x = 54/6
= 9