Collection of Data Unit Test

You are studying in a school in Delhi, India. As a student you are keen to collect statistical information regarding the literacy rate in your city. Which mode of collection of data will you prefer to adopt?

• We can use the direct method of investigation to collect the required data. Under this mode, we can conduct personal interviews with different schools and residents of that locality.

• We can use indirect method of investigation in order to collect the data regarding the literacy rate in our city. Under this method, we can use data published by the local governments and other reliable agencies.

• All of the above.

Which of the following is an example of a good sample survey?

• A good sample survey is usually larger than the population and provides accurate information.

• A good sample survey is generally smaller than the population and is capable of providing accurate information at a much lower cost and shorter time.

• A good sample survey is generally larger than the population and is able to provide accurate data, but at a much higher cost than a census survey.

• None of the above

How are sampling errors calculated?

• By calculating the actual value of the population.

• By making an estimate of the value.

• By calculating the difference between the actual value of the population and its estimate(from the sample).

• None of the above

Which set of questions from the following are the best?

• 1) Is increase in electricity charges justified?

  2) Is the electricity supply in your locality regular?

• 1) Don't you think electricity charges in your locality should be reduced?

  2) What price would you pay for the electricity supply?

• 1) Is the electricity supply in your locality regular?

  2) Is increase in electricity charges justified?

• 1) Are you happy with the charges for electricity supply in your locality?

  2) Why do you think there has been an increase in electricity charges?

Descriptive statistics involves...

• collection, presentation, and description of sample data

• the technique of interpreting the values resulting from the descriptive techniques and making decisions and drawing conclusions about the population

• attempting to provide incorrect information and provide misleading graphs

• using information, numbers, and graphics even when data can't be collected

Tags

CCSS.HSS.ID.A.3

CCSS.HSS.ID.A.1

CCSS.HSS.ID.A.2

Careful use of statistical methods does not include....

• carefully defining the situation

• gathering data

• summarizing the data accurately

• deriving and communicating meaningful conclusions

• throwing out data that does not fit the graph

Tags

CCSS.HSS.IC.B.4

CCSS.HSS.ID.A.3

CCSS.HSS.ID.A.4

What is not a usual question to ask when conducting statistical analysis?

• If the data does not give me the results I want do I still trust the results?

• Where did the data come from, what is its source?

• What kind of surveys were conducted, if any?

• Are the results of the data reliable?

Tags

CCSS.HSS.IC.B.6

Statistics are used...

• in education

• in science

• in government

• in mathematics

• all of the answer choices

Tags

CCSS.6.SP.A.1

CCSS.6.SP.A.2

CCSS.6.SP.B.5

A sample is...

• a subset of a population

• an infinite selection of a population

• a characteristic of a population

• a data value generated by the statistical information

Tags

CCSS.HSS.IC.A.1

A variable (or response variable) is

• a characteristic of interest about each individual element of a population or sample

• a characteristic that is irrelevant to the collection of the data

• a characteristic that changes when the data is collected

• a characteristic or trait that will be ignored in a sample population

Tags

CCSS.HSS.MD.A.1