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2 years ago

In a normal distribution, what percentage of the data falls within 1 standard

Mathematics

1 answer:

sergejj [24]2 years ago

4 0

Answer:

Step-by-step explanation:

Using the Empirical Rule, approximately 68% of the data falls within 1 standard deviation of the mean

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Need ANSWER ASAP math

IrinaVladis [17]

Answer:

D is the answer

Step-by-step explanation:

5 0

3 years ago

Find the product.<br><br> 7x3(5x2+3x+1)=

Maslowich

Answer:

21(11 +3x) or simplified more, would be: 231 + 63x

Step-by-step explanation:

P E M D A S

First, Do what is in the parethesis

7 x 3(5 x 2 + 3x + 1)

7 x 3(10 + 1 + 3x)

7 x 3(11 +3x)

Since there are no exponents move on to the next step.

Then multiply.

21(11 + 3x)

I didn't know whether if you were trying to put 5x(2) or not, so it got me confused! Sorry if this isn't right equation! But I hoped this helped!

If simplifies even more, it would be

231 + 63x

(If they wanted it to be in simpilest form)

3 0

3 years ago

Help me plzzzzz need help

WARRIOR [948]

Answer:

15/20, 0.75

Hope this helps! :)

4 0

4 years ago

Please help me!!!!!!

madreJ [45]

Answer:

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Find the circumference of a circle whose area is 24 pi ft ^2

lianna [129]

$\bf \textit{area of a circle}\\\\
A=\pi r^2~~
\begin{cases}
r=radius\\
-----\\
A=24\pi 
\end{cases}\implies 24\pi =\pi r^2\implies \cfrac{24\pi }{\pi }=r^2
\\\\\\
24=r^2\implies \boxed{\sqrt{24}=r}\\\\
-------------------------------\\\\
\textit{circumference of a circle}\\\\
C=2\pi r\qquad \qquad \implies C=2\pi\left( \boxed{\sqrt{24}} \right)~~
\begin{cases}
24=2\cdot 2\cdot 2\cdot 3\\
\qquad 2^2\cdot 6
\end{cases}
\\\\\\
C=2\pi \sqrt{2^2\cdot 6}\implies C=2\pi (2\sqrt{6})\implies C=4\sqrt{6}~\pi$

3 0

3 years ago