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- Ps_9.2.1 Video Lesson Sampling Distr: Center And Variability
PS_9.2.1 Video Lesson -Sampling Distr: Center and Variability
Interactive Video
•
Mathematics
•
9th - 12th Grade
•
Practice Problem
•
Easy
Daphne Long
Used 1+ times
FREE Resource
11 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
What does a sample distribution involve?
Taking multiple random samples from a population and combining their statistics.
Measuring every individual in the entire population.
Taking a singular sample from a population and interpreting its data.
Calculating the standard error of a statistic.
2.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
What is a sampling distribution?
A distribution of individual observations from a single sample.
A distribution of a statistic made from multiple simple random samples drawn from a specific population.
The distribution of all individuals within an entire population.
A graphical representation of the population's standard deviation.
3.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
How does the mean of a sampling distribution relate to the mean of the original population distribution?
The mean of the sampling distribution is always smaller than the population mean.
The mean of the sampling distribution is always larger than the population mean.
The mean of the sampling distribution is equal to the population mean.
The mean of the sampling distribution is unrelated to the population mean.
4.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
What is a key advantage of using a sampling distribution to estimate a population mean?
It eliminates the need for any data collection.
It allows for precise calculation of the population mean without error.
It provides an idea of the population mean without measuring every individual.
It guarantees that the sample mean will always be exactly equal to the population mean.
5.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
If the heights of a population follow a normal distribution with a standard deviation of 7 cm, what is the standard deviation of the mean for a sample size of 10?
7 cm
0.7 cm
2.21 cm
1.60 cm
6.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
The heights of a population follow a normal distribution with a mean of 160 cm and a standard deviation of 7 cm. For a sample of 10 individuals, what is the probability that the average height is less than 157 cm?
0.9131
0.0869
0.5000
0.1587
7.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
The heights of a population follow a normal distribution with a mean of 160 cm and a standard deviation of 7 cm. What is the proportion of all individuals in this population that have heights greater than 170 cm?
0.9236
0.0764
0.5000
0.1587
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