Mathematics Question

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QUESTION 1

1. What is the first step to conducting a statistical study?

   		Formulate the purpose of the study
   		Define the population
   		Identify the variables
   		Interpret the results

QUESTION 2

1. Which of the following is continuous data?

   		The number of marbles in a jar
   		The number of computers per household
   		Total amount of time it takes to travel to work
   		The number of participants in a study

QUESTION 3

1. Which of the following is discrete data?

   		The number of students attending class on a given day.
   		Height of a fifth grade student
   		The interest rate charged by a local bank
   		The amount of time it takes to travel to work.

QUESTION 4

1. A scientist is studying the properties of certain common household materials and how they change with extreme temperatures. She will be collecting data on temperature (in degrees Fahrenheit). What level of measurement is she looking at?

   		Nominal
   		Ordinal
   		Ratio
   		Interval

QUESTION 5

1. Which of the following is a categorical (qualitative) variable?

   		Temperature (in degrees Fahrenheit)
   		Voting status (registered/not registered)
   		Distance in miles
   		Price of a stock

QUESTION 6

1. What is the last step of solving a statistical study?

   		Collect the data
   		Interpret the results
   		Decide what sampling method you will use to collect data
   		Identify the variables

QUESTION 7

1. A financial advisor is putting together a report on different Exchanges on which stock is traded (NYSE, AMEX, or other). What type of variable and level of measurement is the advisor using in his report?

   		Quantitative variable, ordinal variable
   		Quantitative variable, nominal variable
   		Categorical variable (qualitative), ordinal level of measurement
   		Categorical variable (qualitative), nominal level of measurement

QUESTION 8

1. A clothing store is analyzing merchandise prices to help make decisions on what to charge for clothing on clearance. The store owner collects data on the price value (in dollars) of articles of clothing that are on sale/clearance throughout the seasons. What type of variable and level of measurement the owner is looking at?

   		Quantitative variable, ordinal variable
   		Quantitative variable, ratio variable
   		Quantitative variable, interval level of measurement
   		Categorical variable (qualitative), nominal level of measurement

QUESTION 9

1. From a recent study, it was found that 10% of students travel outside of the country during spring break. Is this an example of descriptive statistics or inferential statistics?

   		descriptive statistics
   		inferential statistics

QUESTION 10

1. Which of the following is a quantitative variable?

   		Amount in fluid ounce of coffee
   		Name of a cell phone carrier
   		Occupation
   		Anxiety rating (highly anxious, moderately anxious, or relaxed)

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