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2 years ago

∫dx/(x+√(x^{2} +x+1)

Mathematics

1 answer:

DIA [1.3K]2 years ago

8 0

Answer:

es1433

Step-by-step explanation:

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The probability of being a universal donor is 6% (O-negative-blood type). Suppose that 6 people come to a blood drive.' a) What

Tcecarenko [31]

Answer:

$Mean = 0.36$

$SD = 0.5817$

$P(x=3) = 0.003588$

Step-by-step explanation:

Given

Let

A = Event of being a universal donor.

So:

$P(A) = 0.06$

$n = 6$

Solving (a): Mean and Standard deviation.

The mean is:

$Mean = np$

$Mean = 6 * 0.06$

$Mean = 0.36$

The standard deviation is:

$SD = \sqrt{np(1-p)}$

$SD = \sqrt{6*0.06*(1-0.06)}$

$SD = \sqrt{0.3384}$

$SD = 0.5817$

Solving (b): P(x = 3)

The event is a binomial event an dthe probability is calculated as:

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

So, we have:

$P(x=3) = ^6C_3 * 0.06^3 * (1-0.06)^{6-3}$

$P(x=3) = ^6C_3 * 0.06^3 * (1-0.06)^3$

$P(x=3) = 20 * 0.06^3 * (1-0.06)^3$

$P(x=3) = 0.003588$

7 0

2 years ago

HELP ME PLEASE !!!!!!!!

german

Answer:

the answer is the top one and the last one. Hope it helped :)

4 0

2 years ago

Add the fractions.<br><br> 1/2+ 1/12

hjlf

Answer:

1283/1000

Step-by-step explanation:

or 2/14

7 0

2 years ago

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What is x when y is 204?

STALIN [3.7K]

Answer:

x ,y = 204

Step-by-step explanation:

6 0

2 years ago

How do I do this<br> Hdhdhsuhss

mina [271]

Answer:

The mean will change, the median will stay the same.

Step-by-step explanation:

The mean will increase because that is the average and a gain of 1000 kg will increase that average.

The median will not change. The median is the middle point. That was the highest point before and increasing it will not change that it was the highest point.

3 0

3 years ago

Read 2 more answers