Simple Random Sampling Concepts

The video tutorial explains simple random sampling, a method to select a sample from a population. It involves assigning numbers to each member and using random selection methods, such as a calculator's random function, to choose the sample. While effective in ensuring randomness, it can be costly and impractical for large populations. The tutorial discusses both the advantages and disadvantages of this sampling method.

What is the first step in conducting simple random sampling in a company with 100 employees?

• Divide employees into groups.

• Ask for volunteers.

• Assign numbers to all employees.

• Select 10 employees randomly.

How many employees are selected in the example given for simple random sampling?

• 5

• 20

• 10

• 15

What is one method mentioned for selecting random samples?

• Using a dartboard.

• Drawing names from a hat.

• Rolling dice.

• Flipping a coin.

Which tool can be used to generate random numbers for sampling?

• A calculator with a random number function.

• A stopwatch.

• A ruler.

• A calendar.

What should be done if a number is repeated during random sampling?

• Ignore the repeat and continue.

• Select a new random number.

• Start the process over.

• Select the next number in sequence.

Why might using a hat to draw numbers not be the best method?

• It is too time-consuming.

• It is too complex.

• It may not be truly random.

• It requires too many resources.

What is a benefit of using a calculator for random sampling?

• It is more accurate and efficient.

• It is more traditional.

• It requires no prior setup.

• It is more entertaining.

What should be considered if the sample includes repeated numbers?

• The process should be restarted.

• The sample size should be increased.

• The repeated numbers should be replaced.

• The sample is invalid.

What is a key advantage of simple random sampling?

• It requires no tools or technology.

• It ensures a random sample of people.

• It is the fastest method available.

• It is always the cheapest method.

What is a potential disadvantage of simple random sampling?

• It can be costly and difficult to implement.

• It is only suitable for small groups.

• It is too simple to be effective.

• It always requires a large sample size.