In experiments, placing subjects in experimental groups such that each subject has an equal probability of ending up in any experimental group is referred to as Question 4 options: random selection. random sampling. random forecasting. random assignment.

In the diagram, the ratio of ab to ae is (1/2) . what is the ratio of the length of to the length of ?

On new year's day, the average temperature of a city is 5.7 degrees celsius. but for new year's day 2012, the temperature was 9.8 degrees below the average. i) if a represents the average temperature on new year's day and 7 represents the temperature on new year's day 2012, what formula accurately relates the two values together? ii) what was the temperature on new year's day 2012? dt a 0.8 ii) - 4 1 degrees celsius da-t-98 ii) 59 degrees celsius 1) 7 = -9,8 11) 59 degrees celsius ii) l degrees celsius

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