1. Which of the following variables are discrete? Circle all that apply. 4 pts T

Question

1. Which of the following variables are discrete? Circle all that apply. 4 pts The number of pieces of wood in my woodpile. a. b. The weight of each piece of wood in my woodpile. c. The amount (gallons) of fuel I used to haul firewood in 2017 d. The average time a piece of firewood takes to burn in the stove. 2. Which of the following are experiments. Circle all that apply. 4 pts a. A doctor prescribes a medication for a patient's illness. b. A researcher gives a drug to a group of 251 patients and a placebo to a group of 245 patients to find out if the drug has an effect on the patients illness. c. A dentist takes x-rays of a patient's teeth to see if any cavities are present d. A political analyst polls a sample of likely voters to determine their opinion on tax increases

Explanation / Answer

Answer : 1) a) The number of pieces of wood in my woodpile.

2) b ) only

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