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Yakvenalex [24]

2 years ago

5

eli has a number cube with the numbers 1,2,3,4,5 and 6 he rolled it once what is the probability(in fractions) that he will land

on 4

1 answer:

Sveta_85 [38]2 years ago

7 0

Answer:

Step-by-step explanation:

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Use the following table for questions 11-13.A baseball manager believes a linear relationship exists between the number of Home

slamgirl [31]

The regression equation of Y on X is given by the following formula:

$Y-\bar{Y}=b_{yx}(X-\bar{X})$

Where byx is given by the formula:

$b_{yx}=\frac{N\sum^{}_{}XY-\sum^{}_{}X\sum^{}_{}Y}{N\sum^{}_{}X^2-(\sum^{}_{}X)^2}$

Where N is the number of values (N=8). We need to find the sum of X values, the sum of Y values, the average of X, the average of Y, the sum of X*Y and the sum of X^2.

The table of values is:

The values we need to know are on the following table:

By replacing the known values in the formula we obtain:

$\begin{gathered} b_{yx}=\frac{8\cdot26125-167\cdot995}{8\cdot4649-(167)^2} \\ b_{yx}=\frac{209000-166165}{37192-27889} \\ b_{yx}=\frac{42835}{9303} \\ b_{yx}=4.6 \end{gathered}$

Now, the average of X and Y is the sum divided by N, then:

$\begin{gathered} \bar{X}=\frac{167}{8}=20.87 \\ \bar{Y}=\frac{995}{8}=124.37 \end{gathered}$

Replace these values in the formula and find the regression equation as follows:

$\begin{gathered} Y-124.37=4.6(X-20.87) \\ Y-124.37=4.6X-4.6\cdot20.87 \\ Y=4.6X-96.11+124.37 \\ Y=4.6X+28.26 \end{gathered}$

The answer is a) y=4.6x+28.26

7 0

11 months ago

What is the value of x?

topjm [15]

39 degrees is the measure of the 3rd. Hope I helped. :) Please click thanks. :)

8 0

2 years ago

Read 2 more answers

Identify square root of 11 as either rational or irrational, and approximate to the tenths place.

Firlakuza [10]

$\sqrt{11} =3.316625$

Rounded to the tenth: 3.3

Square roots that are not perfect squares are always irrational

3 0

2 years ago

A garden table and a bench cost $700 combined. The garden table costs $50 less than the bench. What is the cost of the bench?

JulsSmile [24]

<h2>The bench costs $325</h2>

Cost of bench = x

Cost of garden table = x - 50

x - 50 + x = 700

2x - 50 = 700

2x = 750

x = 325

3 0

1 year ago

Read 2 more answers

Which of the following numbers is a perfect square? 141 196 124 222

Diano4ka-milaya [45]

Answer:

The answer is 196

Step-by-step explanation:

Find the square root of each number. All numbers are decimals but 196, which is 14

7 0

2 years ago