Of the 141 companies on the list, Jason chose to survey only 75 of them. Jason sent surveys to small companies and large companies. If Jason selected survey recipients randomly from the groups of small companies and large companies, he was using a ________.

Of the 141 companies on the list, Jason chose to survey only 75 of them. Jason sent surveys to small companies and large companies. If Jason selected survey recipients randomly from the groups of small companies and large companies, he was using a ________.



A) simple random sample
B) judgment sample
C) convenience sample
D) stratified random sample
E) quota sample


Answer: D


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