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Oxana [17]
3 years ago
9

What is a random sampling

Mathematics
1 answer:
Masja [62]3 years ago
8 0

Random sampling is when you select a random group of people for something.

Ex. Out of a population of 259,096 people, a random sample of 400 people are choosen.

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Kevin buys 5.5 lb of sliced ham for $30.80 at that unit price how much will 7 lb of sliced ham cost​
adell [148]

5.5 : 30.80 = 7 : x

x = 7 * 30.80 / 5.5 = $39.20

Answer: $39.20

4 0
3 years ago
Read 2 more answers
Anna adds (8x + 12y) and (ax − 6y). If the correct answer is 5x + 6y, what is the value of a?
RideAnS [48]
The answer is -3, Choice 1 because you only need to care about the x values, so what do you add/subtract from 8 you get 5? So the answer is -3 
8 0
3 years ago
Read 2 more answers
write an equation that represents the proportional relationship between oil and vinegar explain the meaning of the point
Kitty [74]

To write and equation we call y=oil and x=vinager, so:

\begin{gathered} y=k\cdot x \\ \text{Where k is some constant of proportionality} \end{gathered}

To find the constant k we can use the point in the picture (vinager, oil) = (x, y) = (1, 1.5), so:

\begin{gathered} x=1,y=1.5 \\ 1.5=k\cdot1\Rightarrow k=1.5 \end{gathered}

So, the equation is:

y=1.5x

Now, the meaning of the point (1, 1.5) is for 1 amount of vinager you need 1.5 amount of oil.

6 0
1 year ago
-12 = -6(-8n + 6) + 8(-4+n)<br> How do you solve this equation
ollegr [7]

Answer:

n=1

Step-by-step explanation:

distribute

-6 times -8n is =48n

-6 times 6 =-36

8 times -4 = -32

8 times n =8n

rewrite equation

48n-36+-32+8n=-12

48n+8n-36-32=-12

56n-68=-12

add 68 on both sides

=56

56n=56

n= 1

3 0
4 years ago
Question 7 Please!! I am giving a crown
Nutka1998 [239]

Answer:

5:40

explanation:

The hour hand(the short hand) is on 5. The minute hand(the long hand) is on the 1 meaning 5 minutes have passed. The time on the clock says 5:05. If we add 35 minutes to that we get 5:40.

hope this helps :)

8 0
3 years ago
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