Shawn will conduct a study by rolling a toy car down a ramp. He plans to set the
height of the ramp at 30 centimeters (cm) and record how long it takes the toy car to
reach the end of the ramp. After repeating this process multiple times, he will add a
block with a mass of 10 grams (g) to the toy car and record how long it takes the toy
car to reach the end of the ramp. After conducting several trials, he will add another
block with a mass of 10g to the toy car and record how long it takes the toy car to
reach the end of the ramp. After conducting multiple trials, he will analyze his data
and draw a conclusion. Which statement correctly identifies the test variable
(independent variable) and the outcome variable (dependent variable) of the study?
Answers: 1
Biology, 22.06.2019 08:20
Which is not a characteristic of bacteria? a. they are unicellular. b. they are prokaryotic. c. they are the smallest form of life on earth. d. they are multicellular.
Answers: 2
Biology, 22.06.2019 12:50
Aresearcher created three groups based on participants bmi: normal weight, overweight and obese. the hypothesis being tested is that the three groups differ in the mean number of artificially sweetened drinks consumed weekly. which statistical test might the researcher use, assuming a reasonably normal distribution of values.
Answers: 1
Shawn will conduct a study by rolling a toy car down a ramp. He plans to set the
height of the...
height of the...
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