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1 year ago

What is the correlation coefficient for the data shown in the table?

Mathematics

2 answers:

Leviafan [203]1 year ago

7 0

we know that

The correlation coefficient is a number between $-1$ and $+1$ that represent the linear dependence of two variables or sets of data

Using the function CORREL in a excel tool, calculate the correlation coefficient (r)

see the attached table

the correlation coefficient for the data in the table is equal to $1$

therefore

the answer is

$r=1$

Sveta_85 [38]1 year ago

4 0

Answer:

A. 1

Step-by-step explanation:

Got it correct, Edge2020.

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It is 4.7 km from Lighthouse A to Port B. The bearing of the port from the lighthouse is N73°E. A ship has sailed due west from

Gennadij [26K]

Answer:

correct option is C. 3.7 km

Step-by-step explanation:

given data

A to Port B = 4.7 km

lighthouse = N73°E

lighthouse = N31°E

solution

we get here first $\angle$ B and

here

$\angle$ A = 90 - 73 = 17°

$\angle$ B = 73 - 31 = 42°

and

sum of all angle 180° so

$\angle$ A +

17° + 42° + $\angle$ C = 180°

solve it we get

$\angle$ C = 121°

Now we use here sin law that is

$\frac{b}{sinB} = \frac{c}{sinC}$ ........................2

put here value and we get

$\frac{b}{sin42} = \frac{4.7}{sin121}$

solve it we get

b = 3,7 km

so correct option is C. 3.7 km

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2 years ago

The Sluggers go out for pizza after a game. Five large pizzas plus three medium pizzas together have 110 slices. Two large pizza

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1 year ago

During a catered lunch, an average of 4 cups of tea are poured per minute. The lunch will last 2 hours. How many gallons of tea

EastWind [94]

4 cups of tea are poured per minute
2 hours = 2 x 60 = 120 minutes
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16 cups in one gallon then
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answer
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1 year ago

A ball is thrown down from a balcony with a vertical velocity (in ft/s) given by

fenix001 [56]

Answer:

–90 < –32t – 10 < –58

Step-by-step explanation:

We want the velocity to be BETWEEN -90 and -58.

Whenever we need a quantity, let it be A, to be between two numbers, p and q (p is less than q), we can write it as:

p < A < q

Similarly, here we need the velocity, -32t-10 to be BETWEEN -90 and - 58 (with -90 being the smaller number). Thus we can write:

–90 < –32t – 10 < –58

This is the correct choice, 2nd choice.

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1 year ago

Read 2 more answers

T varies inversely as the square root of u. t = 3 when u = 4. Find t when u = 49.

RoseWind [281]

Answer:

t = $\frac{6}{7}$

Step-by-step explanation:

Given that t varies inversely as the square root of u then the equation relating them is

t = $\frac{k}{\sqrt{u} }$ ← k is the constant of variation

To find k use the condition t = 3 when u = 4, thus

k = t $\sqrt{u}$ = 3 × $\sqrt{4}$ = 3 × 2 = 6

t = $\frac{6}{\sqrt{u} }$ ← equation of variation

When u = 49, then

t = $\frac{6}{\sqrt{49} }$ = $\frac{6}{7}$

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1 year ago