Finding the slope from two points is as simple as:

Plug in your quantities:

because, y2 = -1, y1 = 3, x2 = 6, x1 = 6
Solve:

This is as far as this equation goes because you cannot divide by zero - are you sure you've provided the correct equation?
Answer:
The probability this could occur by chance is approximately 0.003053.
Step-by-step explanation:
This problem can be solved with a binomial distribution, if we imagine that by the end of January the stock market will follow the same pattern for the rest of the year we can define the following random variable:
"The stock market will be up for the rest of the year",
and
if by the end of January the stock market is up and
otherwise, this way
, where p is the probability of success. Next we can define the following random variable:
"Sum of all years where the stock market was up"
Now, the sum of a Bernoulli random variables is a Binomial random variable, in other words
, where n is the number of trials and p is the probability of success. The pdf of Y is given by:

The question give us the
,
and
. Now we just have to solve it:

Which is highly unlikely to happen.
Answer:
I'm not 100 percent sure but I think it's the first answer choice because at 40000 3 years have passed. Hope this helps :)
Answer:
3 skiers will be on the last chair
Step-by-step explanation:
Divide 609 skiers by 6 people per chair:
609 ÷ 6 = 101.5 (also can write as 101 and remainder of 3)
Multiply 101 • 6 = 606
609 - 606 = 3