Basic Statistics

Sum of dots when two dice are rolled is

• A discrete variable

• A continuous variable

• A constant

• A qualitative variable

Tags

CCSS.HSS.MD.A.1

CCSS.HSS.MD.A.3

According to the empirical rule, approximately what percent of the data should lie within μ±σ?

• 75%

• 68%

• 99.7%

• 90%

• 95%

Tags

CCSS.HSS.ID.A.4

The number of accidents in a city during 2010 is

• Discrete variable

• Continuous variable

• Qualitative variable

• Constant

The mean of a distribution is 23, the median is 24, and the mode is 25.5. It is most likely that this distribution is:

• Positively Skewed

• Symmetrical

• Asymptotic

• Negatively Skewed

Tags

CCSS.HSS.ID.A.2

CCSS.HSS.ID.A.3

In statistics, a sample means

• A portion of the sample

• A portion of the population

• All the items under investigation

• None of the above

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.4

In statistics, a population consists of:

• All People living in a country

• All People living in the area under study

• All subjects or objects whose characteristics are being studied

• None of the above

When data are collected in a statistical study for only a portion or subset of all elements of interest we are using:

• A sample

• A Parameter

• A Population

• Both b and c

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.3

CCSS.HSS.IC.B.4

In statistics, conducting a survey means

• None of the above

• Collecting information from elements

• Making mathematical calculations

• Drawing graphs and pictures

Tags

CCSS.HSS.IC.B.3

You asked five of your classmates about their height. On the basis of this information, you stated that the average height of all students in your university or college is 67 inches. This is an example of:

• Descriptive statistics

• Inferential Statistics

• Parameter

• Population

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.4

Which branch of statistics deals with the techniques that are used to organize, summarize, and present the data:

• Advanced Statistics

• Probability Statistics

• Inferential Statistics

• Descriptive Statistics

• Bayesian Statistics

Tags

CCSS.HSS.ID.A.1

CCSS.HSS.ID.A.2

CCSS.HSS.ID.B.5