I think that the answer is 61 I got this off of google so I'm not 100 percent sure please don't take my word as anything but second advice.
Answer:
Stratified Random sampling
Step-by-step explanation:
When a random observations are selected from a number of individual groups in a particular population, the type of sampling technique is called Stratified Random sampling. Stratified Random sampling begins with the partitioning or splitting or a population into subgroups. A number of random selection are then made from each of the subgroups to form a collection of larger samples. This is different from the simple random sampling technique which makes random selection directly from a larger sample or population without prior partitioning of the population. The different grades of students represents the individual stratum from which random selections are made.
Answer:
I think you got it right
Step-by-step explanation:
can you help me Robert Frost's ability to write about the countryside using beautiful imagery was probably influenced by A his life on the farm in the Nem Hampshire countryside. B. his life in the city before he was married C. his keen imagination I need to know this answer