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3 years ago

PLEASE ANSWER QUICKLY

Mathematics

2 answers:

WITCHER [35]3 years ago

6 0

Answer:

Step-by-step explanation:

First find the slope: 1-4/5-(-2)= -3/7

Then you put it into this formula with any one of the points:

y-y1= m(x-x1)

Y-(1)= -3/7(x-5)

Y-1= -3/7x + 2.14

Y= -3/7x + 3.14

Tju [1.3M]3 years ago

3 0

Answer:

The only thing I can think of is the slope intercept form.

The slope of -2,4 and 5,1 is -3/7

The Y intercept is 22/7

$y=-\frac{3}{7}x+\frac{22}{7}$

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g A fair coin is tossed 20 times. The number of heads observed is the count X of successes. Give the distribution of X . Choose

Nuetrik [128]

Answer:

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For this case we define the random variable X as "number of heads observed in 20 times". The distribution for X is given by:

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Step-by-step explanation:

Previous concepts

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The probability mass function for the Binomial distribution is given as:

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Solution to the problem

We assume that we have a fair coin that is $p(Head)=p(Tails)=0.5$

For this case we define the random variable X as "number of heads observed in 20 times". The distribution for X is given by:

$X \sim Binom(n=20, p=0.5)$

The probability mass function for the Binomial distribution is given as:

$P(X)=(nCx)(p)^x (1-p)^{n-x}$

Where (nCx) means combinatory and it's given by this formula:

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

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3 years ago

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replace x and y to find b
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Final:
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