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
gayaneshka [121]
3 years ago
7

A farmer wants to know the effect of using various amounts of fertilizer in relation to the yield of his crops. Be subdivided a

portion of his land into 10 separate but essentially equal plots. He divided the land so that all of the plots had equal exposure to sun, rain, and other environmental conditions. He randomly selected 2 of the 10 plots and spread 2 pounds of fertilizer over each of them. Then he randomly selected 2 of the remaining plots and spread 3 pounds of fertilizer over each of them. He continued with the last sets of plots in the same manner, spreading 4, then 5, then 6 pounds of fertilizer over each of them. Below is a computer output for linear regression of amount of fertilizer versus yield for the 10 plots of land.
Predictor Coef SE Coef T P
Constant 10.100 0.7973 12.67 0.000
Fertiz 1.150 0.1879 6.12 0.000

Required:
What is the equation of the least squares regression line from this sample?
Mathematics
1 answer:
mihalych1998 [28]3 years ago
5 0

Answer:

The equation of line is

\text{yield}=1.15\times \text{fertilizer}+10.1

Step-by-step explanation:

The general equation of line is given as

y=mx+b

where

y is the dependent variable which is yield in this case.

x is the independent variable which is fertilizer in this case

m is the coefficient of the fertilizer whose value is 1.150 from the given values.

b is the constant whole value is 10.100 from the given values.

Thus the equation becomes.

\text{yield}=1.15\times \text{fertilizer}+10.1

You might be interested in
Will Mark Brainlest helppp plss​
Dima020 [189]

Answer:

the required value of c is [ -11 -1

2 5]

3 0
2 years ago
The ticket booth at a school play sells 170 adult tickets and 150 student tickets. Find the ratio of adults to students. Write y
Zigmanuir [339]

Answer: 17:15

Step-by-step explanation:

From the question, we are informed that the ticket booth at a school play sells 170 adult tickets and 150 student tickets.

The ratio of adults to students will be:

= 170/150

= 17:15

The ratio is therefore 17:15.

5 0
2 years ago
I’m trying to help my brother with his homework but I’m confused can someone help? Btw the last one is (D.140)
My name is Ann [436]

The dog must take 125 steps if Evan takes 50.

Option C is correct

<h3>What exactly is a series query?</h3>

These problems are based on numerical series that adhere to a logical rule or pattern derived from fundamental notions in mathematics. The pattern must be examined from a certain sequence that is presented. The following question asks you to anticipate the subsequent number in the series using the same formula.

<h3>Sequence and series types?</h3>

arithmetic progressions Sequences in geometry. Harmonic patterns.

Evan takes ten steps before the dog takes 25 steps.

Evan takes 28 steps first, then the dog takes 70 steps.

Evan takes 50 steps, followed by the dog's 125 steps.

To know more about series question visit:-

brainly.com/question/16415816

#SPJ13

3 0
1 year ago
A machine has 12 identical components which function independently. The probability that a component will fail is 0.2. The machi
iogann1982 [59]

Answer:

P(X>3) =1- P(X\leq 3) = 1-[P(X=0)+P(X=1) +P(X=2) +P(X=3)]

And if we find the individual probabilities we got:

P(X=0)=(12C0)(0.2)^0 (1-0.2)^{12-0}=0.0687

P(X=1)=(12C1)(0.2)^1 (1-0.2)^{12-1}=0.2062

P(X=2)=(12C2)(0.2)^2 (1-0.2)^{12-2}=0.2835

P(X=3)=(12C3)(0.2)^3 (1-0.2)^{12-3}=0.2362

And if we replace we got:

P(X>3) =1- P(X\leq 3) = 1-[0.0687+0.2062 +0.2835 +0.2362]=0.20543

Step-by-step explanation:

Previous concepts

A Bernoulli trial is "a random experiment with exactly two possible outcomes, "success" and "failure", in which the probability of success is the same every time the experiment is conducted". And this experiment is a particular case of the binomial experiment.

The binomial distribution is a "DISCRETE probability distribution that summarizes the probability that a value will take one of two independent values under a given set of parameters. The assumptions for the binomial distribution are that there is only one outcome for each trial, each trial has the same probability of success, and each trial is mutually exclusive, or independent of each other".

The probability mass function for the Binomial distribution is given as:  

P(X)=(nCx)(p)^x (1-p)^{n-x}  

Where (nCx) means combinatory and it's given by this formula:  

nCx=\frac{n!}{(n-x)! x!}  

The complement rule is a theorem that provides a connection between the probability of an event and the probability of the complement of the event. Lat A the event of interest and A' the complement. The rule is defined by: P(A)+P(A') =1

Solution to the problem

Let X the random variable of interest, on this case we now that:

X \sim Binom(n=12, p=0.2)

And we want to find this probability:

P(X > 3)

And we can use the complement rule and we got:

P(X>3) =1- P(X\leq 3) = 1-[P(X=0)+P(X=1) +P(X=2) +P(X=3)]

And if we find the individual probabilities we got:

P(X=0)=(12C0)(0.2)^0 (1-0.2)^{12-0}=0.0687

P(X=1)=(12C1)(0.2)^1 (1-0.2)^{12-1}=0.2062

P(X=2)=(12C2)(0.2)^2 (1-0.2)^{12-2}=0.2835

P(X=3)=(12C3)(0.2)^3 (1-0.2)^{12-3}=0.2362

And if we replace we got:

P(X>3) =1- P(X\leq 3) = 1-[0.0687+0.2062 +0.2835 +0.2362]=0.20543

4 0
3 years ago
Read 2 more answers
Find the sum 4.12+7<br>​
marin [14]

Answer:

11.12

Step-by-step explanation:

4.12

+7

-----

11.12

7+4= 11

11 + .12 = 11.12

8 0
3 years ago
Other questions:
  • What is the measure of angle x?
    11·2 answers
  • A baby weighs 115 ounces. What is the baby's weight in pounds and ounces? *Plz explain your answer*
    9·2 answers
  • Can anyone answer these 4? if so ill give 40 points. please show work!! and no long division please. , thanks!
    5·1 answer
  • Plz help i beg PLZZZZZZ NO SKIPPP
    9·2 answers
  • Find the measure of angle c
    7·1 answer
  • HELP MEEEEEEEE PMEASE<br> In order!!!
    15·1 answer
  • The equation of a straight line is 3x+2y=18
    7·2 answers
  • Find the vertex and focus of the
    12·1 answer
  • The cost of making a cheese cake is RM45. In
    7·1 answer
  • How many 1/12 pieces are in 3/3? 3/3 = __/12
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!