Two math questions plz

Mathematics

1 answer:

lord [1]3 years ago

3 0

we know that

<u>The correlation coefficient</u> is a measure of linear association between two variables. Values of the correlation coefficient are always between −1 and +1.

Using a mathematical tool-------> Excel software

Find the correlation coefficient

see the attached table N 1 and N 2

the answer is

Part 1) The correlation coefficient of the data is 0.02

Part 2) The correlation coefficient of the data is 0.98

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Can someone please help me i don’t understand it

forsale [732]

Answer:

d= bv + r

Treat it like you would a normal equation. Multiply by b and add r to isolate d.

5 0

3 years ago

The data table represents the distance between a well-known lighthouse and a cruise ship over time. The cruise ship is travellin

Trava [24]

Find the velocity first, the "slope".

m=(y2-y1)/(x2-x1)

m=(95.5-53)/(4-2)

m=21.25 ? Your equations are wrong, I'll double check with another set of points...

m=(350.5-308)/(16-14)

m=21.25 LOL, yep none of your lines has the correct slope.

Anyway...

y=21.25x+b, using any point we can solve for the y-intercept, or "b", (2, 53)

53=21.25(2)+b

53=42.5+b

10.5=b so the distance to the lighthouse as a function of time is:

y=21.25x+10.5

So essentially, you should fire your teacher or burn that book you are using :)

6 0

3 years ago

Read 2 more answers

Can people help find the answers to this

Gwar [14]

I think D and E. The point slope formula is y-y₁=m(x-x₁).

3 0

3 years ago

Cách tính tổng<br> 12+25+45+65+34

Andre45 [30]

12+25+45+65+34

= 181