Can you double check my question? ?
a biologist divides the seedlings he collected into those that will produce berries and those that will not. he then randomly selects 10 seedlings from each group. which type of sampling method did he use?

a. convenience sampling

b. systematic sampling

c. simple random sampling

d. stratified random sampling

it also supports my hypothesis. if you rest first you can squeeze the clothespin more times. from the data i collected the average of the eight people concluded exercise makes your muscles more fatigued and less able to squeeze the clothespin compared to resting before squeezing.

you must remain stopped until the stop signal is retracted and the red lights are turned off. approaching traffic in the opposite roadway of a divided highway shall not be required to stop, even if the school bus has the stop-arm extended and the alternately flashing warning signal lamps on.