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3 years ago

The average of a distribution is equal to the summation of x divided by the number of observations is called

Mathematics

1 answer:

bekas [8.4K]3 years ago

4 0

Answer :

<h3>The average of a distribution is equal to the summation of x divided by the number of observations is called <u>Mean</u></h3>

Step-by-step explanation:

<h3>The average of a distribution is equal to the summation of x divided by the number of observations is called <u>Mean</u></h3><h3>For :</h3>

We know that $The average (Mean)=\frac{sum of the observations}{Number of observations}$
$Mean=\frac{\sum x}{N}$ where N is the number of observations

<h3>Therefore the average of a distribution is known as Mean.</h3>

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The sum of 4 and y divided by 5 equal to 9. Find the value of y.<br>pls a better solution

rosijanka [135]

Answer:

y=41

Step-by-step explanation:

Let us start by writing an equation. <em>4 plus y divided by 5 equals to 9</em> :

$\frac{4+y}{5}=9$

Great! Now let us solve for the variable, <em>y</em>, by isolating the terms:

$4+y=45\\y=41$

<em>I hope this helps! Let me know if you have any questions :)</em>

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2 years ago

After 3.5 hours, Patrick had traveled 217 miles. If he travels at a constant speed, how far will he have traveled after 4 hours

Ede4ka [16]

Answer: He would have traveled 248 miles

Explanation: This is a ratio

To find how many miles he would have traveled after 4 hours, we need to apply the information givin into a ration table

(We can put miles on the top and hours on the bottom)

217 ?
------- ------
3.5 4

Now, we can do two things:
1. cross multiply
we would take 217 times 4 (868) and divide that by 3.5 (248)

2. Divide the top and bottom by 3.5 (numerator= 62 denominator= 1)
multiply 62 by 4 to get 248

Hope this helps!

6 0

3 years ago

1/X+4 = 5 it is solving rational equations

finlep [7]

X=1
Subtract four so you get 1/x=1
Multiply by x
1x=1
Divide by 1

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2 years ago

Write in point slope form of the line that passes through the points (3,-1) and (6,-2)

skelet666 [1.2K]

$\bf (\stackrel{x_1}{3}~,~\stackrel{y_1}{-1})\qquad (\stackrel{x_2}{6}~,~\stackrel{y_2}{-2}) \\\\\\ slope = m\implies \cfrac{\stackrel{rise}{ y_2- y_1}}{\stackrel{run}{ x_2- x_1}}\implies \cfrac{-2-(-1)}{6-3}\implies \cfrac{-2+1}{3}\implies -\cfrac{1}{3} \\\\\\ \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-(-1)=-\cfrac{1}{3}(x-3)\implies y+1=-\cfrac{1}{3}(x-3)$

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3 years ago

A side of the triangle below has been extended to form an exterior angle of 128°. Find the value of x.

denis23 [38]

Answer:

x = 104

Step-by-step explanation:

The exterior angle is equal to the sum of the opposite interior angles

24+x = 128

Subtract 24 from each side

24+x-24 =128 -24

x =104

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3 years ago