Introduction to statistics Exam Questions Answered Correctly Latest Version

Introduction to statistics Exam Questions Answered Correctly Latest Version data - Answers _____ are collections of observations, such as measurements, genders, or survey responses. (A single _____ value is called a datum, a term that does not see very much use) statistics - Answers _____ is the science of planning studies and experiments; obtaining data; and then organizing , summarizing, presenting, analyzing, and interpreting those data and then drawing conclusions based on them. population - Answers A _____ is the complete collection of all measurements or data that are being considered census - Answers A _____ is the collection of data from every member of the population sample - Answers A _____ is a subcollection of members selected from a population Voluntary response sample - Answers A _____ ( or self-selected sample) is one in which the respondents themselves decide whether to be included. parameter - Answers A _____ is a numerical measurement describing some characteristic of population statistic - Answers A _____ is a numerical measurement describing some characteristic of a sample quantitative - Answers _____ (or numerical) data consist of numbers representing counts or measurements categorical - Answers _____ (or qualitative or attribute) data consist of names or labels that are not numbers representing counts or measurements. discrete - Answers _____ data result when the data values are quantitative and the number of values is finite or "countable." (If there are infinitely many values, the collection of values is countable if it is possible to count them individually, such as the number of tosses of a coin before getting tails.) continuous - Answers _____ (numerical) data result from infinitely many possible quantitative values, where the collection of values is not countable. (That is, it is impossible to count the individual items because at least some of them are on a _____ scale, such as the length from 0 cm. to 12cm.) nominal - Answers The _____ level of measurement is characterized by data that consist of names, labels, or categories only. The data cannot be arranged in an ordering scheme (such as low to high). Ex: Eye colors ordinal - Answers Data are in the _____ level of measurement if they can be arranged in some order, but differences (obtained by subtraction) between data values either cannot be determined or are meaningless. Ex: Ranks of colleges in U.S. News & World Report interval - Answers Data are at the _____ level of measurement if they can be arranged in order, the differences between data values can be found and are meaningful. Data at this level do not have a natural zero starting point at which none of the quantity is present. Ex: Body temperatures in degrees Fahrenheit or Celsius ratio - Answers Data are at the _____ level of measurement if they can be arranged in order, differences can be found and are meaningful, and there is a natural zero starting point (where zero indicates that none of the quantity is present). For data at this level, differences and _____s are both meaningful.