EHS Unit 3.1 Part 1 Day 3

The two branches of statistics are (a)   and (b)   .

• Engineering and chemistry

• Mathematical and inferential

• Inferential and descriptive

• Hard and easy

A prediction has been made that the chance that a person will be robbed in a certain city is 15%. Is that an example of inferential or descriptive statistics?

• Inferential

• Descriptive

___________ statistics consists of generalizing from samples to populations, performing estimations and hypothesis tests, determining relationships among variables and making predictions.

• Mathematical

• Descriptive

• Inferential

• Population

A recent survey of 2000 adults having an MBA reported that the average salary is more than $65k a year. Is that an example of inferential or descriptive statistics?

• Inferential

• Descriptive

___________ statistics consists of the collection, organization, summarization and presentation of data.

• Mathematical

• Descriptive

• Inferential

• Population

From a past study, it was found that 56% of women are the primary investors in their households. Is that an example of inferential or descriptive statistics?

• Inferential

• Descriptive

10% of college students are predicted to travel out of the country during spring break. Is that an example of inferential or descriptive statistics?

• Inferential

• Descriptive

The average salary of the graduates of the class of 1980 is $32,500. Is that an example of inferential or descriptive statistics?

• Inferential

• Descriptive

A survey of 976 American households found that 32% of the households own two cars. Identify the sample.

• All American households

• 976 American households

• 32% of Americans own two cars

• Two cars

A survey of 976 American households found that 32% of the households own two cars. Identify the population.

• All American households

• 976 American households

• 32% of Americans own two cars

• Two cars