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SOVA2 [1]
3 years ago
10

And hey if you know that 20/100 is 13, then how do you find the amount of 80/100?

Mathematics
1 answer:
dezoksy [38]3 years ago
7 0
How is 20/100 = 13...

Anyways, look at the two fractions.

20/100 and 80/100

Notice how 20 times 4 equals 80?

So maybe, 13 * 4 = 52.

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What is the probability of selection for any man in a proportionate random sample, where a sample of 100 will be drawn from a po
kolbaska11 [484]
Working Principle: Stratified Random Sampling

nx = (Nx/N)*n

where:
    nx = sample size for stratum x
    Nx = population size for stratum x
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7 0
3 years ago
Which of the following represents a function that is reflected over the x-axis and shifted up 3
Travka [436]

Answer:

Option 2.

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- the '-'  before the x^2 reflects it in the x-axis,  and the + 3 shifts it up 3 units.

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