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3 years ago

Properties of the normal distribution include?

Mathematics

1 answer:

V125BC [204]3 years ago

6 0

Answer:

Properties of a normal distribution

The mean, mode and median are all equal.

The curve is symmetric at the center (i.e. around the mean, μ).

Exactly half of the values are to the left of center and exactly half the values are to the right.

The total area under the curve is 1.

Step-by-step explanation:

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Write the equation of the line where slope is 12 and y-intercept is -1.

il63 [147K]

The answer is y=12x-1

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3 years ago

Which value of d is a solution to equation 2.2d + 5.4= 12

ryzh [129]

Hello!

Answer:

d=3

*The answer must have a positive sign.*

Step-by-step explanation:

Distributive property: a(b+c)=ab+ac

First, you multiply by 10 from both sides of an equation.

$2.2d*10+5.4*10=12*10$

Then, you had to refine the problem down.

$22d+54=120$

Next, you subtract by 54 from both sides of an equation.

$22d+54-54=120-54$

Simplify.

$22d=66$

You can also divide by 22 from both sides of an equation.

$\frac{22d}{22}=\frac{66}{22}$

And finally, simplify and solve. You can also divide by the numbers.

$66/22=3$

Final answer: → $d=3$

Hope this helps!

Thanks!

-Charlie

Have a great day!

7 0

4 years ago

Read 2 more answers

The price of a computer is reduced by 17.5%. The reduced price is £264 by how much is the price reduced

Anestetic [448]

Answer:

Step-by-step explanation:

100%-17.5%= 82.5%

82.5% (divide) 82.5%= 1%

so (1% of the orginal price)=

£264 (divide) 82.5%= £320= original price

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3 years ago

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an arch way is modeled by the equation y=-2x^2+8x. A rod is to be placed across the archway at an angle definded by the equation

patriot [66]

So.. hmm check the picture below

now, to know where A and B are, that occurs when the parabolic equation equates the linear one

thus

$\bf y=-2x^2+8x
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\\\\\\
y=y\implies -2x^2+8x=\cfrac{x+10.34}{2.23}
\\\\\\
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\\\\\\
0=4.46x^2-16.84x+10.34$

now, running that on the quadratic formula, you end up with the values of 3.00402497440839842242 and 0.77175977895483027713

thus B rounded up is 3.004 and A rounded up is 0.7718

what's the "y" value for B?, well, you can use either the linear or quadratic equation for that, let's use the quadratic one

$\bf B=3.00402497440839842242
\\\\\\
f(B)=-2B^2+8B\implies f(B)=5.98386770152842978586$

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If you place a 33-foot ladder against the top of a building and the bottom of the ladder is 26 feet from the bottom of the build

Firdavs [7]

Answer:

I hope that helped! :)

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2 years ago