MED/SURG EXAM 3 TEST BANK -QUESTIONS AND CORRECT DETAILED ANSWERS

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MATH 2228 EXAM 1 QUESTIONS 2024-2025 -

QUESTIONS AND CORRECT DETAILED ANSWERS

statistics

Ans: the science of collecting, organizing, summarizing and analyzing information to
draw conclusions or answer questions

Quiz descriptive statistics (branch of statistics)

Ans: organizing, summarizing, and describing data through numerical summaries,
tables, and graphs ex: (average, mean, percentage)

Quiz inferential statistics (branch of statistics)

Ans: using methods that take a result from a sample, extend it to the population,
and measure the reliability of the result (can make educated guess, but not
conclusion)

Quiz population (big group)

Ans: the entire group of individuals to be studied

Quiz census (big group)

Ans: gathering information from the entire population

Quiz parameter (big group)

, Ans: a numerical summary of a population

Quiz sample (small group)

Ans: a subset of the population that is being studied

Quiz statistic (small group)

Ans: a numerical summary of a sample

Quiz population-> census-> parameter

Ans:

Quiz sample-> statistic-> estimate for big group

Ans:

Quiz Ex: reporting the projected stock market rise/fall based on the prices during the
last two months

Ans: inference statistic

Quiz Ex: determining the average age of an ECU student

Ans: Inference or Descriptive

Quiz Ex: drawing a pie chart to show the breakdown of government spending

Ans: descriptive statistics

Quiz Ex: using last years enrollment in statistics classes to estimate how many
students will take statistics this year

Ans: inference statistics

Quiz Ex: predicting the outcome of an election based on the results of a poll

Ans: Inference statistics

Quiz variables will change

Ans:

Quiz variables

Ans: characteristics of individuals within the population

Quiz qualitative variable (descriptive)