Answer:
c 7 mins
Step-by-step explanation:
In the least-squares regression line, the desired sum of the errors (residuals) should be:_____.
a) maximized.
b) 1.
c) positive.
d) negative.
e) zero.
In the least-squares regression line, the desired sum of the errors (residuals) should be: zero
What is Number system?A number system is defined as a system of writing to express numbers.
The key word here is "desired". We wish to make the errors as small as possible. The smallest any individual error can get is 0. Adding the entire collection of zeros will sum in a total of zero.
An error of zero means we hit the mark exactly. The unfortunate reality is that error is going to happen, so we'll have some positive error values with any regression line (or curve). It's only when all points are on the same line is when we have zero error and perfect interpolation rather than regression.
Again, the question is asking about desired error and the ultimate goal is to make the error zero. The next best thing is to minimize it as small as possible
Hence in the least-squares regression line, the desired sum of the errors (residuals) should be: zero
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Help me fast pleasee
Answer:
y=3x
Step-by-step explanation:
hope it helped
Find the 53rd term of the following arithmetic sequence.
3, 12, 21, 30, ...
Answer:
471
Step-by-step explanation:
using the equation 9n-6 and replacing the n with 53 you would get 471.
What is the y intercept of y =4x
Answer:
origin of the graph (0)
Step-by-step explanation:
because it does not have a b value it is zero if there is no plus or minus a number at the end it is always 0 when dealing with the y=mx+b equation
Rick’s scores in his last 15 rounds of golf are 72, 80, 75, 84, 78, 72, 75, 68, 81, 74, 79, 70, 77, 83, and 72. If he scores an 80 on each of the next three rounds, which measure of center would increase more, the mean or median?
Answer:
The median increased more
Step-by-step explanation:
Given that:
Scores on last 15 :
72, 80, 75, 84, 78, 72, 75, 68, 81, 74, 79, 70, 77, 83, 72
Obtaining the range, mean, median and mode from the data above :
Rearranged data:
68, 70, 72, 72, 72, 74, 75, 75, 77, 78, 79, 80, 81, 83, 84
Range = 84 - 64 = 16
Mode = 72 - frequency of 3)
Mean = ΣX / n where n = sample size
Mean = 1140 / 15 = 76
Median = 0.5(n+1)th term = 0.5(16)th term =
8th term = 75
A score of 80 on each of next 3 rounds :
72, 80, 75, 84, 78, 72, 75, 68, 81, 74, 79, 70, 77, 83, 72, 80, 80, 80
Rearranged data:
68, 70, 72, 72, 72, 74, 75, 75, 77, 78, 79, 80, 80, 80, 80, 81, 83, 84
Range = 84 - 68 = 16
Mean = ΣX / n where n = sample size
Mean = 1380 / 18 = 76.67
Median =0.5(n+1)th term = 0.5(19)th term =
9.5 = (9th term +. 10th term) / 2 = (77 +78) / 2 = 77.5
-8(6x - 7y) - (24x - 3y)
Answer:
-72x + 10y
Step-by-step explanation:
First apply the Distributive Property of Multiplication:
-8(6x - 7y) becomes -48x + 7y and -(24x - 3y) becomes -24x + 3y.
Combining like terms, we get -72x + 10y
Answer:
-21x+53y
Step-by-step explanation:
learned it
3x + y = 15 What is the solution of this system of equations? (5x+2y=-4
Answer:
x=34 y=-87 (34,-87)
Step-by-step explanation:
3x+y=15 rewrite to solve for y -----> y=15-3x
5x+2y=-4
Plug y=15-3x into 5x+2y=-4
So, 5x+2 (15-3x)=-4
Distribute: 5x+30-6x=-4
Combine like terms: 30-x=-4
Solve for x -x=-34
Solve for x x=34
Then, to solve for y, plug "x" into 3x+y=15
So, 3(34)+y=15
Distribute: 102+y=15
Solve for y y=-87
help me.............
Answer:
is there a right angle?
Step-by-step explanation:
2u = u + 43
u = 43?
what is the equivalent ratio to 16 56
Answer:
The number 2
Step-by-step explanation:
Answer: easy question.The ratios are 1. 32:1122) 2. 8:28 hope that helps u
Step-by-step explanation:
Use the distributive property to write an equivalent expression. 8(10p + 6q - 1)
Answer:
80p + 48q - 8
Step-by-step explanation:
In triangle ABC, what is the measure of angle C if A = 60°, a = 9, and c = 5?
Answer:
List all of the solutions.
C = A = 60 ° = a = 9 = c = 5 =
Step-by-step explanation:
find the missing angles
Answer:
112 and 68 (same as matching above ones)
Step-by-step explanation:
Is each expression equivalent to 6 * 53? Justify your reasoning.
a. 6 * 50 + 6* 3
b. 10 * 53 -4 53
c. 6 50 + 3
d. 6 * (50 + 3)
Answer:
a, b, d. Yes c. NoStep-by-step explanation:
a. 6 * 50 + 6* 3 = 6* ( 50 + 3) = 6* 53
Yesb. 10 * 53 -4*53 = (10 - 4)*53 = 6*53
Yesc. 6 * 50 + 3 = 303
Nod. 6 * (50 + 3) = 6*53
YesAnswer:
A, B, D = Yes
C = No
6 * 50 + 6* 3 = 6* ( 50 + 3) = 6* 53
10 * 53 -4*53 = (10 - 4)*53 = 6*53
6 * 50 + 3 = 303
6 * (50 + 3) = 6*53
Please help with 1 and 2 I give brainliest and 37 points
Answer:
1) -1 < 2
2) -2 > -4
Step-by-step explanation:
Determine whether the mapping diagram shown below represents a
function
27 points
Answer:
Not a Function
Step-by-step explanation:
Each y-value has 2 x-values. It is supposed to only have one. hope this helped you!! Give brainliest
help child.......help me
my answer:
-2.9d+4.8h-16
Explanation:
Four more than twenty-six time a number is equivalent to 12 times the same number less 15.
What is the number?
Answer:
n = -19/14
Step-by-step explanation:
Please transcribe this into a symbolic equation:
26n + 4 = 12n - 15
Then 14n = -19, or n = -19/14.
7 ft and 13 ft whats the third side length
I REALLY NEED HELp!!!!!!!!
Retail Price Quantity Total Price
Twister Pen .35 * 2 = $0.70
Mini Fish Eraser .50 * 1 = $0.50
Happy Cap Eraser .05 * 5 = $0.25
Erasing Grip .35 * 3 = $1.05
---------
Subtotal .7 + .5 + .25 + 1.05 = $2.50
Sales Tax Amount (unknown because we aren't given a tax value)
Total (also unknown for the same reason)
Retail Price Quantity Total Price
Twister Eraser .35 * 3 = $1.05
Astral Wonders Pencils .20 * 4 = $0.80
Criss Cross Critters .15 * 2 = $0.30
Traction Mechanical
Pencil .35 * 2 = $0.70
Muchin Mike Sharpener .50 * 2 = $1.00
----------
Subtotal 1.05 + .8 + .3 + 0.7 + 1 = $3.85
Sales Tax Amount (unknown because we aren't given a tax value)
Total (also unknown for the same reason)
Best of Luck!
PLS HELP. It’s question 18
Answer:
no
Step-by-step explanation:
Adam divides 8032 x 32 in which place write the first digit of the quotient
Answer:
100
Step-by-step explanation:
8032\32
Which equation is a point slope form equation for line AB?
y+1=−2(x−6)
y+6=−2(x−1)
y+2=−2(x−5)
y+5=−2(x−2)
Answer:
The equation of the line would be y + 6 = - 2(x - 1).
6/ PLEASE HELP ME ASAP.
Answer:
40
Step-by-step explanation:
In the minute number 2, you can see the intersection point in 40 packs.
Best regards
A 6.50% coupon bond with 18 years left to maturity is offered for sale at $1,035.25. What yield to maturity [interest rate] is the bond offering? Assume interest payments are paid semi-annually, and solve using semi-annual compounding. Par value is $1000.
Answer:
The yield to maturity is 6.3974%
Step-by-step explanation:
The computation of the yield to maturity is as follows
Given that
NPER = 18 × 2 = 36
PMT = $1,035.25 × 6.50% ÷ 2 = $33.65
PV = $1,035.25
FV = $1,000
The formula is shown below:
=RATE(NPER;PMT;-PV;FV;TYPE)
The present value comes in negative
AFter applying the above formula, the yield to maturity is
= 3.1987% × 2
= 6.3974%
Hence, the yield to maturity is 6.3974%
Solve the equation for y.
yk+yv=r
y=?
Answer:
y = r / (k+v)
Step-by-step explanation:
First, you use the distributive property and take out y: y(k+v)=r
Then you divide both sides by (k+v): y(k+v)/(k+v) = r/(k+v)
Finally you get y = r / (k+v)
Where is the blue dot? Fill in the blank
Answer:
-19
Step-by-step explanation:
It's every 3 numbers because -7 would be between -10 & -4
can anyone help me find the answers please !!
Write an expression that represents the product of q and 5 divided by 2. Plz Help Me
Answer:
(5q)/2Step-by-step explanation:
Since we want the q x 5 to be done first, we must use parentheses.
(5q)/2 (5q is a shorthand way to wrote 5 times q)
270 students in an elementary school. There are 5 boys for every 4 girls. How many boys are there in school
Answer:
150
Step-by-step explanation:
draw a flowchart to calculate the average from 25 exam scores
Answer:
?
Step-by-step explanation: