Question

. Describe the difference between a "population" and a "sample." What is a "representative sample"? What...

. Describe the difference between a "population" and a "sample." What is a "representative sample"? What is the best way to achieve representativeness in a sample?

Homework Answers

Answer #1
  • population is defined as total group of individuals of a defined group that we are studying or collecting information for data driven desicions.
  • eg:mean height of men,it includes all men that have lived,are alive,and will live in future.
  • it is impossible to survey such an entire population as not all the members are observable.
  • it is costly
  • it is time consuming.

sample is a part of population selected as a group of people who take part in the investigation.

  • eg: measuring mean height of a sample of people selected from the population
  • it is cost effective
  • doesnt consume much time
  • disadvantage:since fewer members are under study ,it leads to loss of some information.

representative sample is a small quantity of something that accurately reflects the larger entity.eg:in a class room of 30 students,half the students are males and half the students are females,a representative sample would include six students:3 males and 3 females.

any sampling method that uses random selection or random sampling or probability sample technique is the best way to achieve representativeness in a sample.. hence probability sampling is the best way.

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
a. What is the difference between population mean and sample mean? b. Describe the difference between...
a. What is the difference between population mean and sample mean? b. Describe the difference between point estimate and a confidence interval? c. Describe the role that confidence level play in the confidence interval?
What is the best way to select a representative sample when you have a sampling frame...
What is the best way to select a representative sample when you have a sampling frame of the study population
___________ is one way of ensuring that a sample is representative of the population. Question 13...
___________ is one way of ensuring that a sample is representative of the population. Question 13 options: The two-tailed test The between-subjects design The sign test Random sampling
1. What is the difference between population and sample? Use samples to explain.
1. What is the difference between population and sample? Use samples to explain.
What could be the explanation for the difference between the sample mean and the population mean...
What could be the explanation for the difference between the sample mean and the population mean ?
Given a scenario describe a "research question" with an implied population, implied sample, a given parameter...
Given a scenario describe a "research question" with an implied population, implied sample, a given parameter - What is the best way to help students identify: Population, parameter, sample, statistic, variable, and data...
1. The difference between a sample mean and the population mean or the difference between the...
1. The difference between a sample mean and the population mean or the difference between the means of two random samples is called: A. nonresponse error. B. selection bias. C. sampling error. D. nonsampling error. 2. The manager of the customer service division of a major consumer electronics company is interested in determining whether the customers who have purchased a videocassette recorder over the past 12 months are satisfied with their products. If there are 4 different brands of videocassette...
What is the difference between population parameters and sample statistic. Which one will you choose instead?
What is the difference between population parameters and sample statistic. Which one will you choose instead?
Probability And Statistics Question: What is the difference between sample and population? Why we have choose...
Probability And Statistics Question: What is the difference between sample and population? Why we have choose sampling method instead of population analysis? Explain sampling procedures with suitable examples?
1. What is the difference between population proportion vs sample proportion vs probability? Please explain.
1. What is the difference between population proportion vs sample proportion vs probability? Please explain.
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT