1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Softa [21]
3 years ago
12

Which of the following statements is TRUE about the stepwise selection procedure?

Mathematics
1 answer:
Rasek [7]3 years ago
3 0

Answer:

A. The stepwise selection procedure uses Adjusted R-square as the "best" model criterion.

Step-by-step explanation:

Stepwise regression is a model which uses variables in step by step manner. The procedure involves removal or inclusion of independent variables one by one. It adds the most significant independent variable and removes the less significant independent variable. Usually stepwise selection uses R-square or Mallows Cp for picking the best fit.

You might be interested in
What is the x intercept of the line below?
maw [93]

Answer:

No x-intercept

Step-by-step explanation:

When there's an equation that has no x then it will not touch the x axis.

8 0
3 years ago
Read 2 more answers
Please help, Thanks
NeTakaya

Answer:

Step-by-step explanation:

There are two. This can be factored which will find both of them.

y = (x - 3)(x - 1)

x - 3 = 0

x - 3 + 3 = 3

x - 1 = 0

x - 1 + 1 = 1

x = 1

The zeros are (3,0) and (1,0)

3 0
3 years ago
The    will require researchers to fill out documents describing their proposed study in detail.
algol [13]

Answer: Institutional Review Board

5 0
3 years ago
Write out the first four terms of the series to show how the series starts. Then find the sum of the series or show that it dive
Nostrana [21]

Answer:

The first four terms of the series are

(9+3),(\frac97+\frac35),(\frac9{7^2}+\frac3{5^2}),(\frac9{7^3}+\frac3{5^3})

\sum_{n=0}^\infty \frac9{7^n}+\frac{3}{5^n} = 14.25

Step-by-step explanation:

We know that

Sum of convergent series is also a convergent series.

We know that,

\sum_{k=0}^\infty a(r)^k

If the common ratio of a sequence |r| <1 then it is a convergent series.

The sum of the series is \sum_{k=0}^\infty a(r)^k=\frac{a}{1-r}

Given series,

\sum_{n=0}^\infty \frac9{7^n}+\frac{3}{5^n}

=(9+3)+(\frac97+\frac35)+(\frac9{7^2}+\frac3{5^2})+(\frac9{7^3}+\frac3{5^3})+.......

The first four terms of the series are

(9+3),(\frac97+\frac35),(\frac9{7^2}+\frac3{5^2}),(\frac9{7^3}+\frac3{5^3})

Let

S_n=\sum_{n=0}^\infty \frac{9}{7^n}    and     t_n=\sum_{n=0}^\infty \frac{3}{5^n}

Now for S_n,

S_n=9+\frac97+\frac{9}{7^2}+\frac9{7^3}+.......

    =\sum_{n=0}^\infty9(\frac 17)^n

It is a geometric series.

The common ratio of S_n is \frac17

The sum of the series

S_n=\sum_{n=0}^\infty \frac{9}{7^n}

    =\frac{9}{1-\frac17}

    =\frac{9}{\frac67}

    =\frac{9\times 7}{6}

    =10.5

Now for t_n

t_n= 3+\frac35+\frac{3}{5^2}+\frac3{5^3}+.......

    =\sum_{n=0}^\infty3(\frac 15)^n

It is a geometric series.

The common ratio of t_n is \frac15

The sum of the series

t_n=\sum_{n=0}^\infty \frac{3}{5^n}

    =\frac{3}{1-\frac15}

    =\frac{3}{\frac45}

    =\frac{3\times 5}{4}

    =3.75

The sum of the series is \sum_{n=0}^\infty \frac9{7^n}+\frac{3}{5^n}

                                        = S_n+t_n

                                       =10.5+3.75

                                       =14.25

4 0
3 years ago
Randy filled 48 pint jars to the top with jelly. How many gallons of jelly did Randy make it? Explain.
cestrela7 [59]

Answer:

24

Step-by-step explanation:

The conversion is half (1/2) Every 1 quart is two pints. If Randy had 48 pints of jelly, we simply divide 48 by 2...


48/2=24

3 0
3 years ago
Other questions:
  • How to solve -6x + 3y = 18<br> Y=2x - 2
    12·2 answers
  • Janet is trying to identity a number. She knows the following properties of the unknown number. The opposite of the unknown numb
    10·1 answer
  • A library buys 36 English books, 48 Science books and 72 Mathematics books. The thickness of each book is the same. Now, the lib
    14·2 answers
  • What type of number has a decimal that does not repeat or end?
    7·1 answer
  • Describe the graph of the function f(x) = x3 − 11x2 + 36x − 36. Include the y-intercept, x-intercepts, and the shape of the grap
    13·1 answer
  • How do you read this expression 8(8x+7) and 8(3x)+8(7)
    15·1 answer
  • Complete the table:
    13·1 answer
  • If P(x) = 12x3 + 11x2 - 9x + 10 and<br> Q(x) = 4x2 – 3x + 2, find<br> P(x) + Q(x)
    13·1 answer
  • Two thirds divided by one quarter
    12·1 answer
  • A theater holds 2,680 seats. The lower level has 100 less than 2 times as many seats as the upper level. The middle level has 80
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!