MATH 110 STATISTICS MODULE 2
CERTIFICATION EVALUATION TEST 2026 FULL
SOLUTION QUESTIONS GRADED A+
◉ missing not at random. Answer: The missing value is related to
the reason that it is missing
◉ experiment. Answer: we apply some treatment & proceed to
observe it effects on the individuals/experimental units/subjects.
◉ Obeservational Study. Answer: We observe & measure specific
characteristics, but we don;t attempt to modify the individuals being
studied.
◉ Systematic sampling. Answer: Selecting a random starting point &
then selecting every "kth" element in the Population
◉ convience sampling. Answer: use data that is easy to get
◉ stratified sampling. Answer: Subdivide the population into at least
two different subgroups that share the same characteristics, then
draw a sample from each subgroup (or stratum).
CERTIFICATION EVALUATION TEST 2026 FULL
SOLUTION QUESTIONS GRADED A+
◉ missing not at random. Answer: The missing value is related to
the reason that it is missing
◉ experiment. Answer: we apply some treatment & proceed to
observe it effects on the individuals/experimental units/subjects.
◉ Obeservational Study. Answer: We observe & measure specific
characteristics, but we don;t attempt to modify the individuals being
studied.
◉ Systematic sampling. Answer: Selecting a random starting point &
then selecting every "kth" element in the Population
◉ convience sampling. Answer: use data that is easy to get
◉ stratified sampling. Answer: Subdivide the population into at least
two different subgroups that share the same characteristics, then
draw a sample from each subgroup (or stratum).
