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3 years ago

DOES ANYONE KNOW HOW TO DO THIS????????

Mathematics

1 answer:

wariber [46]3 years ago

3 0

Answer:

1. figure 4 ; 2. figure 1; 3. figure 3 .

Step-by-step explanation:

1. The correlation coefficient is closest to 1 for the data-set relating to figure 4.

2. The least evidence of a linear relationship is shown by the data-set relating to figure 1.

3.The correlation coefficient r appear to be equal to -1 for the data-set relating to figure 3.

We know that as more the modulus of the correlation coefficient (r) approaches 1, more the figure related to the data-set starts to resemble a straight-line.

The line of linear regression takes a positive slope for a positive value of r and takes a negative slope for a negative value of r.

Moreover, more the modulus of r approaches 0, more there is absence of linearity in the scatter plot.

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3 years ago

Suppose p(a) = 0.40 and p(a 

sveticcg [70]

Between the probability of union and intersection, it's not clear what you're supposed to compute. (I would guess it's the probability of union.) But we do know that

$P(A\cup B)+P(A\cap B)=P(A)+P(B)$

For parts (a) and (b), you're given everything you need to determine $P(B)$ .

For part (c), if $A$ and $B$ are mutually exclusive, then $P(A\cap B)=0$ , so $P(A\cup B)=P(A)+P(B)$ . If the given probability is $P(A\cup B)=0.55$ , then you can find $P(B)=0.15$ . But if this given probability is for the intersection, finding $P(B)$ is impossible.

For part (d), if $A$ and $B$ are independent, then $P(A\cap B)=P(A)\cdot P(B)$ .

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3 years ago

The people of Bridgetown wanted to build a bridge across a nearby river. Since they were poor swimmers, their master Trigonomos

VikaD [51]

Answer:

60.2 m

Step-by-step explanation:

Let x represent the width of the river. The distance from the point across from the tree to the second point is 15 m. The angle from this point to the tree across the river is 76°.

This makes the side opposite the angle x, the width of the river. It also means the 15 m side is adjacent to this angle.

The ratio opposite/adjacent is the ratio for tangent; this gives us the equation

x/15 = tan(76)

Multiply both sides by 15:

15(x/15) = 15(tan(76))

x = 15(tan(76)) ≈ 60.2

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3 years ago

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Greeley [361]

Take a ruler and put it on your desk and mesure from the centimeter side!!

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faust18 [17]

Answer:

$91,200

Step-by-step explanation:

I gave it my best shot sorry if it wrong

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3 years ago