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3 years ago

14

What is the y=mx+b of this?

1 answer:

pochemuha3 years ago

3 0

I think it’s y=-1x+ -8 or could be written as y=-1x-8

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LAST ONE! -maybe hehe

Likurg_2 [28]

That’s blurry sorry

5 0

3 years ago

The probability that a certain hockey team will win any given game is 0.3773 based on their 13 year win history of 389 wins out

notsponge [240]

Answer:

0.8895 = 88.95% probability that the hockey team wins at least 3 games in November.

Step-by-step explanation:

For each game, there are only two possible outcomes. Either the teams wins, or they do not win. The probability of the team winning a game is independent of any other game, which means that the binomial probability distribution is used to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

In which $C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

And p is the probability of X happening.

The probability that a certain hockey team will win any given game is 0.3773.

This means that $p = 0.3773$

Their schedule for November contains 12 games.

This means that $n = 12$

Find the probability that the hockey team wins at least 3 games in November.

This is:

$P(X \geq 3) = 1 - P(X < 3)$

In which:

$P(X < 3) = P(X = 0) + P(X = 1) + P(X = 2)$

So

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

$P(X = 0) = C_{12,0}.(0.3773)^{0}.(0.6227)^{12} = 0.0034$

$P(X = 1) = C_{12,1}.(0.3773)^{1}.(0.6227)^{11} = 0.0247$

$P(X = 2) = C_{12,2}.(0.3773)^{2}.(0.6227)^{10} = 0.0824$

Then

$P(X < 3) = P(X = 0) + P(X = 1) + P(X = 2) = 0.0034 + 0.0247 + 0.0824 = 0.1105$

$P(X \geq 3) = 1 - P(X < 3) = 1 - 0.1105 = 0.8895$

0.8895 = 88.95% probability that the hockey team wins at least 3 games in November.

3 0

2 years ago

Am not sure if I started this right, but it's probability, can someone check if I started right?

Sphinxa [80]

Yup! You got it so far! Keep it up! <3

6 0

3 years ago

Udent/twewxxrhs

geniusboy [140]

Answer:

14% and this is rounded btw

4 0

2 years ago

Keiko is putting money into a checking account. Let y represent the total amount of money in the account (in dollars). Let x rep

Kamila [148]

the starting amount would be the 550, because it doesn't have a variable assigned to it.

change per week is 20 since it is being multiplied by the number of weeks

7 0

3 years ago