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amid [387]
3 years ago
11

Which statement(s) give advantages or disadvantages of systematic random sampling? Check all that apply.

Mathematics
1 answer:
Rina8888 [55]3 years ago
3 0

Answer:

A,D,E

Step-by-step explanation:

Edge 2020

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PLEASE HELP WILL GIVE BRAINLIEST!
storchak [24]

Answer:

it 20 chews 5 over 20 chews 10

= 20! / (20-5)! times 5!  over 20! / (20-10)! times 10!

=15504/ 184756= .08 or 8%

Step-by-step explanation:

have a good day/night

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3 0
3 years ago
Mario needs 32.5 m of chain link fence to enclose his garden. The cost of the fence is $6.88 per meter.
DaniilM [7]

Cost of fence for a meter = 6.88

For 32.5 m, it would be = 6.88 * 32.5 = 223.6

D)223.60 is answer

8 0
3 years ago
Read 2 more answers
The number of accidents per week at a hazardous intersection varies with mean 2.2 and standard deviation 1.4. The distribution o
DENIUS [597]

Answer:

33.36% probability that X is less than 2.

Step-by-step explanation:

The distribution is not normal, however, using the central limit theorem, it is going to be approximately normal. So

Central Limit Theorem:

The Central Limit Theorem estabilishes that, for a random variable X, with mean \mu and standard deviation \sigma, a large sample size can be approximated to a normal distribution with mean \mu and standard deviation s = \frac{\sigma}{\sqrt{n}}

Normal Probability distribution:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

\mu = 2.2, \sigma = 1.4, n = 9, s = \frac{1.4}{\sqrt{9}} = 0.467

(a) Suppose we let X be the mean number of accidents per week at the intersection during 9 randomly chosen weeks. What is the probability that X is less than 2?

This is the pvalue of Z when X = 2. So

Z = \frac{X - \mu}{\sigma}

By the Central Limit Theorem

Z = \frac{X - \mu}{s}

Z = \frac{2 - 2.2}{0.467}

Z = -0.43

Z = -0.43 has a pvalue of 0.3336.

33.36% probability that X is less than 2.

4 0
3 years ago
At a pond there were 24 ducks swimming. The tape diagram shows the ratio of ducklings to adult ducks.Complete the table.
Setler [38]
Put a 5 in each of the duckling boxes and then a 1 in the adult duck boxes
Because 5•5•5•5•5=25 + 1 = 26
3 0
2 years ago
Read 2 more answers
Hey! please help i’ll give brainliest!
Debora [2.8K]

Answer:

The net force of the brick is 0N and the brick doesn't move

Step-by-step explanation:

Both forces have the same amounts being applied to on the brick, so the forces will cancel each other out and have no effect on the brick, so the brick won't move.

5 0
3 years ago
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