Answer:
a)Slope:
Intercept:
b)
And the determination coeffecient is
Step-by-step explanation:
Data given and definitions
The correlation coefficient is a "statistical measure that calculates the strength of the relationship between the relative movements of two variables". It's denoted by r and its always between -1 and 1.
The sum of squares "is the sum of the square of variation, where variation is defined as the spread between each individual value and the grand mean"
When we conduct a multiple regression we want to know about the relationship between several independent or predictor variables and a dependent or criterion variable.
n=110,

Part a
The slope is given by this formula:
If we replace we got:
We can find the intercept with the following formula
We can find the average for x and y like this:
And replacing we got:
Part b
In order to calculate the correlation coefficient we can use this formula:
For our case we have this:
n=110,
So we can find the correlation coefficient replacing like this:
And the determination coeffecient is
75 because 7+77=84 and 84-9=75
Answer:
7, -5, 2/3, 5.79
Step-by-step explanation:
rational numbers are numbers you can put in fraction form.
is not a perfect square, therefore you cannot put it in fraction form.
is an imaginary number. Rational numbers are in the Real Numbers category, so it is not a rational number.
Answer:
times around the Earth
Step-by-step explanation:
we know that
(one million million)
The average size of an apple is approximately 8.3 cm
Convert to km

Multiply by 3.7 trillion apples
Divide by the circumference of earth (40,075 km)