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In a statistical study, a sample statistic can be a good estimator of a population parameter

Which describes the general trend of temperature change throughout the atmosphere form bottom to top? 

Temperatures on the Celsius scale are at interval level of measurement

Examine the diagram below.  Which global winds meet at the equator? 

If a sample statistic is reported to be 37% within the margin of error of 5% the range of values likely to contain the population parameter is between  37% and 42%

A representative population from the sample is a necessary condition for a statistical study 

A poorly chosen sample can render the entire study meaningful

Data at nominal and ordinal level of measurement is always ratio level of measurement

Chicago’s climate is classified as

An air mass that is warmer than its surroundings will continue to rise upward. This air mass is