CSCC EXAM PREP QUESTIONS AND
ANSWERS GRADED A PLUS STUDY
RESOURCE
●● Sample
Answer: A relatively small proportion of people who are chosen in a
survey so as to be representative of the whole. Ex: 50 CSCC students, 12
toddlers at a daycare
●● Parameter
Answer: Summary values that come from population data
●● Statistic
Answer: Summary values that come from sample data
●● Inferential statistics
Answer: numerical data that allow one to generalize- to infer from
sample data the probability of something being true of a population.
ex: who will win the next basketball game
●● Descriptive statistics
, Answer: numerical data used to measure and describe characteristics of
groups. Includes measures of central tendency and measures of
variation.
ex: how many points were scored in a basketball game
●● Census
Answer: To collect as is data from an entire population ex: collect data
from all spring 2024 STAT1450 students
●● Simulation
Answer: Collect pretend data ex: a flight or driving simulator
●● Experiment
Answer: To impose a treatment and record the response. Ex: compare of
new drug and placebo on patients
●● Sampling
Answer: Collect "as is" data from a subset of the population ex: survey
30 randomly selected customers
●● simple random sample
Answer: every member of the population has a known and equal chance
of selection. The least biased
ANSWERS GRADED A PLUS STUDY
RESOURCE
●● Sample
Answer: A relatively small proportion of people who are chosen in a
survey so as to be representative of the whole. Ex: 50 CSCC students, 12
toddlers at a daycare
●● Parameter
Answer: Summary values that come from population data
●● Statistic
Answer: Summary values that come from sample data
●● Inferential statistics
Answer: numerical data that allow one to generalize- to infer from
sample data the probability of something being true of a population.
ex: who will win the next basketball game
●● Descriptive statistics
, Answer: numerical data used to measure and describe characteristics of
groups. Includes measures of central tendency and measures of
variation.
ex: how many points were scored in a basketball game
●● Census
Answer: To collect as is data from an entire population ex: collect data
from all spring 2024 STAT1450 students
●● Simulation
Answer: Collect pretend data ex: a flight or driving simulator
●● Experiment
Answer: To impose a treatment and record the response. Ex: compare of
new drug and placebo on patients
●● Sampling
Answer: Collect "as is" data from a subset of the population ex: survey
30 randomly selected customers
●● simple random sample
Answer: every member of the population has a known and equal chance
of selection. The least biased
