3 years ago

Will mark brainliest! 10 points!

Mathematics

1 answer:

Sonbull [250]3 years ago

3 0

im not t he best at math but i think its a base on the question

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Suppose that x is the probability that a randomly selected person is left handed. The value (1-x) is the probability that the pe

harina [27]

Answer:

The maximum variance is 250.

Step-by-step explanation:

Consider the provided function.

$V(x)=1000x(1-x)$

$V(x)=1000x-1000x^2$

Differentiate the above function as shown:

$V'(x)=1000-2000x$

The double derivative of the provided function is:

$V''(x)=-2000$

To find maximum variance set first derivative equal to 0.

$1000-2000x=0$

$x=\frac{1}{2}$

The double derivative of the function at $x=\frac{1}{2}$ is less than 0.

Therefore, $x=\frac{1}{2}$ is a point of maximum.

Thus the maximum variance is:

$V(x)=1000(\frac{1}{2})-1000{\frac{1}{2}}^2$

$V(x)=250$

Hence, the maximum variance is 250.

4 0

3 years ago

Explain how to find the lower quartile of a box-and-whisker plot.

elena55 [62]

C. The lower quartile (of a box-and-whisker plot) is the median of the lower half of the data.
Also referred to as "Q1"

6 0

3 years ago

Read 2 more answers

Pls answer ASAP<br> 5 extra points

Leona [35]

Answer:

The answer is B.

Step-by-step explanation:

Any percentage is a number divided by 100 . So 0.4%=0.4100 . Dividing 0.4 by 100 gives 0.004 .

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3 years ago

If the following system of equations was written as a matrix equation in the form AX = C, and matrix A was expressed in the form

romanna [79]

Matrix A was expressed in the form of a 2x2
i'm not sure if this helps or not but here you go

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4 years ago

What is -9x - 5 - 8 + x in Simple form

Wittaler [7]

Answer:

Step-by-step explanation:

-9x - 5 - 8 + x =

-8x - 13 <==

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3 years ago