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2 years ago

Distinguish between a correlation and an autocorrelation. how are these measures similar? how are they different?

1 answer:

3 0

A correlation is a causative association between two or more variables, whereas an autocorrelation is a correlation of variables in successive ranges.

<h3>What is correlation?</h3>

A correlation is defined as a causative association between two or more variables (different variables), which can be used to make predictions about a given outcome.

The correlation coefficient enables the estimation of this association between different variables.

Moreover, an autocorrelation is a special type of correlation between variables that can be found in successive ranges (e.g. range time intervals).

In conclusion, a correlation is a causative association between two or more variables, whereas an autocorrelation is a correlation of variables in successive ranges.

Learn more about correlation here:

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What are numbers that when multiplied, is 6, and when added is 13?

Radda [10]

Xy=6
x+y=13

x+y=13
minus x
y=13-x
sub for y in other equation
x(13-x)=6
13x-x^2=6
add -13x+x^2 to both sides
0=x^2-13x+6
use quadratic formula
for
ax^2+bx+c=0
x= $\frac{-b+/- \sqrt{b^{2}-4ac} }{2a}$

a=1
b=-13
c=6

x= $\frac{-(-13)+/- \sqrt{(-13)^{2}-4(1)(6)} }{2(1)}$
x= $\frac{13+/- \sqrt{169-24} }{2}$
x= $\frac{13+/- \sqrt{145} }{2}$
x= $\frac{13+ \sqrt{145} }{2}$ or $\frac{13- \sqrt{145} }{2}$
aprox
x=12.5208 or0.479203

the numbers are 12.5208 and 0.479203

7 0

4 years ago

Jesse and Amir were assigned the same book to read. Jesse started reading on Saturday, and he is reading 30 pages a day. Amir di

bezimeni [28]

1. An equation representing the number of days Amir has been reading and the number of pages he has read is <u>y = 35x</u>.

2. An equation representing the number of days Jesse has been reading and the number of pages she has read is <u>y = 30 + 30x</u>.

3. The system of equations from 1 and 2 is y = 35x and y = 30 + 30x.

4. At the end of Friday, after solving the equations, both Jesse and Amir read <u>210 pages each</u>, with Jesse spending <u>7 days</u> and Amir <u>6 days</u>.

5. For Jesse and Amir, the equation solutions are <u>y is 210</u> pages and <u>x is 6 days</u>.

6. After solving the equations, it will take Amir <u>6 days</u> to catch up with Jesse and each person must have read <u>210 pages</u> or a total of <u>420 pages</u>.

<h3>What is a system of equations?</h3>

A system of equations involves using more than one equation solved simultaneously.

Jesse's reading rate per day = 30 pages

Amir's reading rate per day = 35 pages

The number of pages read by Jesse, y = 30 + 30x

The number of pages read by Amir, y = 35x

Where x = the number of days they have been reading

<h3>Solving the equations:</h3>

y = 30 + 30x and y = 35x

35x = 30 + 30x

35x - 30x = 30

5x = 30

x = 6 (30/5)

<h3>Jesse:</h3>

y = 30 + 30x

y = 30 + 30(6)

y = 210

y = 35x

y = 35(6)

y = 210

Learn more about simultaneous equations at brainly.com/question/16763389

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5 0

1 year ago

The figure is net for rectangular prism.

lyudmila [28]

4× (11+5)
4×16= 64 mm

4 0

3 years ago

Bananas are on sale at 8 for 96. find the cost of 7 bananas

loris [4]

This is a proportion problem. Set up your equation:

8/96 = 7/x

Now cross multiply

96 x 7 = 672

672/8 = 84

Answer is $84

3 0

3 years ago

Read 2 more answers

Help asap plzz!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!:(

Aliun [14]

Answer:

4+5(x+2)=7x

2x = 14

hope it helps

Step-by-step explanation:

4 0

3 years ago