Mathematics
Mathematics, 31.07.2020 23:01, kimberlee304

A study was conducted on the effect of daytime running lights on cars. Researchers gathered data from a random sample of 3,248 drivers and measured quite a few variables, in addition to the explanatory variable of daytime running lights and the response variable of less accidents. According to a
newspaper article summarizing the study, those cars that had daytime running lights were more likely to be operated by drivers who were confident and
attentive. Drivers whose cars did not have daytime running lights were about 22% more likely to have an accident. What conclusion can we draw from this
study? Explain.

We can infer a cause-and-effect relationship because the sample was selected randomly.

We cannot infer a cause-and-effect relationship because we do not have a control group.

We can infer a cause-and-effect relationship because multiple variables were included.

We cannot infer a cause-and-effect relationship because treatments were not assigned randomly.

We cannot infer a cause-and-effect relationship because the treatments imposed were not blocked correctly.

answer
Answers: 2

Other questions on the subject: Mathematics

image
Mathematics, 21.06.2019 23:50, nichelle2807
What is 0.000008 meters in scientific notation
Answers: 1
image
Mathematics, 22.06.2019 02:30, caprisun6779
Abby is collecting rainfall data. she finds that one value of the data set is a high-value outlier. which statement must be true? abby will use a different formula for calculating the standard deviation. the outlier will increase the standard deviation of the data set. the spread of the graph of the data will not change. abby will not use the mean when calculating the standard deviation.
Answers: 3
image
Mathematics, 22.06.2019 04:00, wsdafvbhjkl
Ineed with 8,9 and 10 love ya guysss
Answers: 1
image
Mathematics, 22.06.2019 04:30, AngelH2650
The three sides of a triangle have lengths of 4x+3, 2x+8, and 3x-10. what is the length of the shortest side if the perimeter of the triangle is 136cm?
Answers: 1
Do you know the correct answer?
A study was conducted on the effect of daytime running lights on cars. Researchers gathered data fro...

Questions in other subjects:

Konu
Mathematics, 20.02.2020 02:01