Statistics and Probability Quiz for Grade 11

Which of the following population parameters is used as symbol for the mean or average population?

Which of the following statements best describes a parameter?

• It describes the population.

• It describes the hypothesis.

• It describes the researcher.

• It describes the sample.

A researcher estimates that the average height of buildings in a large city is at least 700 feet. Based on the given data, which is the parameter?

• buildings in the large city

• the researcher

• the average height of the building

• at least 700 feet

The average height of a 1-year-old child is 29 inches. What is the parameter?

• the mean height of 33 inches

• a random sample of 30 children who are 1-year old

• one-year-old child

• the average height of 29 inches

Which is the parameter in the given situation below? “The average age of 10 college students is 24 years.”

• 10 college students

• age of the college students

• the average age of 24 years

• 24 years

A parameter is...

• a numerical value summarizing the sample data

• a planned activity with results yielding a set of data

• a numerical value that summarizes all the data of an entire population

• the set of values collected from the variable from each of the elements that belongs to the sample

Which of the following is a parameter?

• s

Which of the following symbols represents population standard deviation?

• μ

SWS survey was trying to see if people in the Philippines thought the pollution was too high. Which choice best represents a parameter?

• all people in the Philippines

• 500 randomly selected residents of the Philippines

• 71% of the residents surveyed who thought the pollution was too high

• percentage of all people in the Philippines who thought the pollution was too high

A research conducted on a certain company last year showed that 25% of the employees would rather drink coffee than soft drinks during break time. Which choice best represents a parameter?

• 25 employees

• the percentage of employee

• all employees

• coffee rather than soft drinks