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Alcohol was a factor in about 10% of all automobile crashes in Ohio during 2016, but driver inebriation was present in almost 28% of crashes in which a fatality occurred. Here is some data on fatal vehicle accidents by season:        ALCOHOL INVOLVED NO ALCOHOL TOTAL WINTER 60 158 218 SPRING 73 172 245 SUMMER 110 243 353 FALL 70 247 317 TOTAL 313 820 1133 a.  What is the probability that a fatal vehicle accident in Ohio will occur in the winter?  Report your answer to 3 decimal places. [A] b. What is the probability that a fatal vehicle accident in Ohio both occurs in winter and alcohol is involved? Report your answer to 3 decimal places. [B] c.  Given the fatal vehicle accident happened in the winter, what is the conditional probability that alcohol is involved? Report to 3 decimal places. [C] d.  What is the relative risk of an alcohol-involved fatal vehicle accident in Ohio in summer compared to winter? Report to 3 decimal places.  [D]  

Which of the following is not true about the binomial distribution?

Which of the following is not true about the binomial distribution?

Researchers took 60 people, 45 of whom had never smoked, and divided them into two groups:  those with low exposure to second hand smoke and those with high exposure to second hand smoke. They took MRI images of the lungs of both groups of subjects, and found that the lungs of those who had high exposure to second hand smoke had many tiny holes and spaces inside their lungs that should not be there. This study is an example of

An experiment investigated whether cell phone use changes drivers’ reaction times.  College students were randomly allocated to a cell phone group or a control group.  The experiment measures subjects’ response times (in milliseconds) in a driving simulation.  Data were collected for both groups and the p-value for the appropriate hypothesis test was calculated to be 0.03.  Which of the following statements is correct?

An experiment investigated whether cell phone use changes drivers’ reaction times.  College students were randomly allocated to a cell phone group or a control group.  The experiment measures subjects’ response times (in milliseconds) in a driving simulation.  Data were collected for both groups and the p-value for the appropriate hypothesis test was calculated to be 0.03.  Which of the following statements is correct?

Which of the following measures of center and spread are most appropriate for describing a symmetric bell-shaped distribution?

Researchers took 60 people, 45 of whom had never smoked, and divided them into two groups:  those with low exposure to second hand smoke and those with high exposure to second hand smoke. They took MRI images of the lungs of both groups of subjects, and found that the lungs of those who had high exposure to second hand smoke had many tiny holes and spaces inside their lungs that should not be there. This study is an example of

Marine biologists have determined that a certain species of whale has overall lengths that are Normally distributed with mean 60 feet and standard deviation 12 feet.   A research vessel spots a whale of this species and estimates its length to be 47 feet. What is the z-score of this length? (Round your answer to 2 decimal places.)

An experiment exposed mice to varying light conditions at night. The scatterplot of Body Mass Gain versus Percent of Calories showed evidence of a linear relationship. The resulting least squares regression line equation  Body Mass Gain = 1.622 + 0.115 x Percent of Calories has an R2 value of 0.08. Which of the following is the slope of the least squares regression line equation?