# Lesson Worksheet: Sample and Population Methods Mathematics

In this worksheet, we will practice determining when to take a sample and when to use the whole population.

**Q3: **

Which of the following data sets would be a suitable to evaluate the service of one of the hotels in the UK?

- Amass population
- Bsamples

**Q5: **

Jacob asked all the students in his class how many text messages they send on average per day. He found out that the average was 24. He then claimed that students in his school send on average 24 text messages per day. Is this figure a sample statistic or a population characteristic?

- Aa sample statistic
- Ba population characteristic

**Q8: **

Which of the following data sets is suitable to examine the blood type of a patient?

- AMass population
- BSamples

**Q9: **

Determine the appropriate method for collecting the data in the following case: checking the quality of wheat before buying.

- Asample method
- Bmass population method

**Q10: **

Which of the following data sets would be suitable to check the quality of production of a car manufacturer?

- Amass population
- Bsamples

**Q11: **

Which of the following data sets would be suitable to see the ratio of bacteria in water in a stream?

- AMass population
- BSamples

**Q12: **

Which of the following data sets would be suitable to find how far a crop infestation has spread?

- Amass population
- Bsamples

**Q14: **

Which of the following data sets would be suitable to determine the average score on a test in a class with 25 students?

- ASamples
- BMass population

**Q15: **

Which of the following data sets is suitable to measure the individual incomes of the population?

- ASamples
- BMass population

**Q16: **

Which would be the most appropriate method for collecting the data when checking the status of newly fitted gas pipes before switching on distribution?

- Amass population method
- Bsample method

**Q18: **

A poll was published before a senate election predicting that Mrs. Jackson would win with of the votes cast. Is this figure a sample statistic or a population characteristic?

- AA population characteristic
- BA sample statistic

**Q19: **

The last census showed that slightly more than one-third of people rent the home where they live. Is this figure a sample statistic or a population characteristic?

- Aa population characteristic
- Ba sample statistic

**Q21: **

A school principal was happy to announce that the number of late arrivals per day in the whole school was only five on average. Is this figure a sample statistic or a population characteristic?

- Aa sample statistic
- Ba population characteristic

**Q22: **

True or False: A sample consists of one or more observations drawn from the population.

- ATrue
- BFalse

**Q23: **

A teacher wants to estimate the percentage of the school students who consider science to be their favorite subject. He asked a random sample of 80 students entering the school and found that 52 students consider science to be their favorite subject, while 28 students do not. Which of the following is true?

- AWe can conclude that about of the school students consider science to be their favorite subject.
- BWe can conclude that about of the school students consider mathematics to be their favorite subject.
- CWe can conclude that about of the school students consider science to be their favorite subject.
- DWe can conclude that about of the school students do not consider science to be their favorite subject.

**Q24: **

True or False: A population includes all of the elements from a set of data.

- AFalse
- BTrue

**Q25: **

A statistical analysis shows that the number of positive cases of a disease in an economically developed country is of the whole population. Is this a sample statistic or a population characteristic?

- APopulation characteristic
- BSample statistic
- CNone of the answers are correct.