Explain the difference between a simple random sample and a systematic sample. (select all the apply.)

Mathematics

1 answer:

Jet001 [13]3 years ago

4 0

Answer:

Under simple random sampling, a sample of items is chosen randomly from a population, and each item has an equal probability of being chosen. Meanwhile, systematic sampling involves selecting items from an ordered population using a skip or sampling interval.

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Lenny is competing with his cousin, Jasper, in an indoor rock-climbing contest. At the start of the climb, Lenny makes his way 5

SVEN [57.7K]

Answer:

$4\frac{1}{2}$ feet further.

Step-by-step explanation:

Since these are mixed numbers that are both in fourths, we can easily subtract the two numbers. However, I find it easier if we first convert both mixed numbers into improper fractions.

$5\frac{1}{4} = \frac{5\cdot4+1}{4} = \frac{21}{4}$

$9\frac{3}{4} = \frac{9\cdot4+3}{4} = \frac{39}{4}$

Now we can subtract the numerators:

$\frac{39}{4} - \frac{21}{4} = \frac{39-21}{4} = \frac{18}{4}$

$\frac{18}{4}$ simplifies down to $\frac{9}{2}$ .

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$4\frac{1}{2}$ .

Hope this helped!

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3 years ago

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Serjik [45]

Answer:

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The 3rd one down is correct

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4 years ago

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Answer:

Step-by-step explanation: