Mathematics, 14.07.2020 19:01 frisha
A study compared paired daytime and nighttime counts of electric eel, peacock eel, and black spotted eel made by the same divers in seven lakes during June
2015. Overall, they counted 126 eels during the day and 291 eels at night. The researchers speculate that eels counted at night were present during the
daytime, but were hidden from view. Biologists should consider that eel behavior and susceptibility to being seen might vary a great deal between daytime and
nighttime, even during the summer. In some lakes, the majority of eels may not be seen during the daytime. Determine whether the study is an observational
study or an experiment. Justify your answer with specific references to the information in the study.
Experimental study, because the divers are catching eels for a sample
Observational study, because the divers are watching the eels only during the day
Experimental study, because the divers are watching the eels during the day and night
Observational study, because the divers are not catching eels for a sample
Unable to determine whether this is an observational study or experiment
Answers: 1
Mathematics, 21.06.2019 19:30
Boris needs to buy plastic spoons. brand a has a box 42 spoons for $2.37. brand b has a box of 72 spoons for $3.57. find the unit price for each brand. then state which brand is the better buy based on the unit price. round your answer to the nearest cent.
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Mathematics, 22.06.2019 00:00
Vinny is interviewing for a job.he wants his take home pay to be at least $42,000.what is the least salary he can earn if he pays 25% income tax?
Answers: 2
Mathematics, 22.06.2019 00:40
If a distance of 75 yds is measured back from the edge of the canyon and two angles are measured , find the distance across the canyon angle acb = 50° angle abc=100° a=75 yds what does c equal?
Answers: 1
A study compared paired daytime and nighttime counts of electric eel, peacock eel, and black spotted...
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