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Sagot :
Only (B) 4.72% of the couples polled have 5 or more children.
What do we mean by random sample?
- A simple random sample (or SRS) in statistics is a subset of individuals (a sample) chosen at random from a larger set (a population) with the same probability.
- It is the process of selecting a sample at random.
- In SRS, each subset of k people has the same chance of being chosen for the sample as any other subset of k people.
A simple random sample is an unbiased sampling technique. - Simple random sampling is a fundamental type of sampling that can be used to supplement more complex sampling methods.
To find what number of children occurred the least frequently:
- We know that a total of 1250 couples were polled.
- Determine the lowest frequency and divide it by the total number of couples surveyed.
- The lowest frequency corresponds to 5 or more children.
The percentage is as follows:
- 50/1250 × 100 = 4.72
Therefore, only (B) 4.72% of the couples polled have 5 or more children.
Know more about random samples here:
https://brainly.com/question/24466382
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The complete question is given below;
A random sample of 1,250 couples was asked the question, "How many children presently reside in your household?"
Number of Children—Frequency
0——250
1——-112
2——560
3 ——201
5 or more ——59
What number of children occurred the least frequently? Calculate this percent
A) 2, 55.2%
B)5 or more, 4.72%
C)5 or more, 11.91%
D)4.21.67%
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