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3 years ago

Helpppppp its a test

Mathematics

1 answer:

Elan Coil [88]3 years ago

8 0

Answer:

y=x^2 is not a linear function

Step-by-step explanation:

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Giả thiết X là biến ngẫu nhiên X~N(µ, σ^2) thì P( |X-µ| >3,05*σ ) sẽ là

svp [43]

Answer:

,luvxieixeqbxeixbwibiblccucucx

Step-by-step explanation:

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qvdjvjeflnd
nwlxlwbxaabx
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7 0

3 years ago

Suppose that X is a random variable that has a binomial uncertainty distribution with parameters n = 10 and π = 0.4. Calculate t

swat32

The numerical values of the mean and standard deviation are 4 and 1.55, respectively

<h3>The numerical value of the probability that x = 6. </h3>

The given parameters are:

n = 10

π = 0.4

The probability is then calculated as:

$P(x) = ^nC_x * \pi^x *(1-\pi)^{n-x}$

So, we have:

$P(6) = ^{10}C_6 * 0.4^6 *(1-0.4)^4$

Apply the combination formula

$P(6) = \frac{10!}{6!4!} * 0.4^6 *0.6^4$

So, we have:

$P(6) = 210 * 0.4^6 *0.6^4$

Evaluate

P(6) = 0.1115

Hence, the numerical value of the probability that x = 6 is 0.1115

<h3>The numerical values of the mean and standard deviation </h3>

The mean value is:

$\bar x = n\pi$

This gives

$\bar x = 10 * 0.4$

$\bar x = 4$

The standard deviation value is:

$\sigma = \sqrt{\bar x(1-\pi)$

This gives

$\sigma = \sqrt{4(1-0.4)$

$\sigma = 1.55$

Hence, the numerical values of the mean and standard deviation are 4 and 1.55, respectively

Read more about mean and standard deviation at:

brainly.com/question/16030790

#SPJ1

8 0

2 years ago

Nicholas bought three business related books. His total bill was $150. If one book cost him 50% more than the other two books co

murzikaleks [220]

First you need to find the middle number, wich is 75. Since there is no $75, I would go with $80.

5 0

3 years ago

line f passes from points (85,-45)and (5,-7) line g is parallel to line f what is the slope line of g

katen-ka-za [31]

-19/40.

This can be found using the slope formula.

5 0

4 years ago

How many hours do they have to work before they go to the movies

lorasvet [3.4K]

Answer:

25 months

Step-by-step explanation:

Plan A : $70 per month

Plan B : $50 per month + $500 as a one time cost.

So for A $70 a month would take 8 months to be at least $500

And for B it in those 8 months it would cost you $900

But we have to keep going up until they are equal

25*70 = 1750

(25*50) = 1250+500=1750

So yes 25 months is correct

7 0

3 years ago