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3 years ago

The least squares regression line minimizes the sum of the:

Mathematics

1 answer:

lorasvet [3.4K]3 years ago

3 0

Answer:

d) Squared differences between actual and predicted Y values.

Step-by-step explanation:

Regression is called "least squares" regression line. The line takes the form = a + b*X where a and b are both constants. Value of Y and X is specific value of independent variable.Such formula could be used to generate values of given value X.

For example,

suppose a = 10 and b = 7. If X is 10, then predicted value for Y of 45 (from 10 + 5*7). It turns out that with any two variables X and Y. In other words, there exists one formula that will produce the best, or most accurate predictions for Y given X. Any other equation would not fit as well and would predict Y with more error. That equation is called the least squares regression equation.

It minimize the squared difference between actual and predicted value.

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Please hurry 14PTS 3 QUESTIONS

goldfiish [28.3K]

Answer:

a) 1/6 b) 0.11

Step-by-step explanation:

Probability is the likelihood or chance that an event will occur.

Probability = Expected outcome of event/Total outcome

If a two six-sided number cubes are rolled e.g 2dice, the total number of sample space is expressed as 6^n where n is 2(since only 2 six sided cubes are rolled)

Total outcome of event = 6² = 36

If sum of 7 are generated after rolling, the expected outcome will be:

E = {(1,6),(6,1),(2,5),(5,2),(3,4),(4,3)}

Note that each of the list will given a sum of 7

Total expected outcome = 6

Probability that a sum of 7 is rolled

= 6/36

= 1/6

b) Similarly, if a product of 12 is rolled, the expected outcome of event are:

E = {(2,6),(6,2),(3,4),(4,3)}

Expected outcome = 4

Note that the product of each outcome will give us 12.

Probability that a product of 12 is rolled = 4/36

= 1/9

= 0.11 (to nearest hundredth)

3 0

3 years ago

Y=2x+12 and y=-x-9 in graph form.

fomenos

All work shown, I hope that this works!

8 0

3 years ago

Whats the fraction 18/24 reduced to its lowest items?

asambeis [7]

Hello!

$\sf Answer:$

The fraction 18/24, reduced to its lowest terms, is: $\boxed{3/4}$
_____________________________

Divide both the numerator and the denominator by the GCD of 18 and 24, which is 6:

18 ÷ 6 = 3

24 ÷ 6 = 4

It's simplest form would be 3/4. This cannot be reduced further.

3 0

3 years ago

Solve for x! Someone helppp

olganol [36]

Answer:

17.2

Step-by-step explanation:

8.7x-1.9x=116.96

6.8x=116.96

x=116.96/6.8

x= 17.2

6 0

2 years ago

At what angle does the line 2x=y=2z intersection with ellipsoid

Leni [432]

It will be around four

4 0

3 years ago