A group against drunk driving did a recent study and found the above information

Question

A group against drunk driving did a recent study and found the above information regarding 400 that occurred on a Saturday night in NY. What is the probability of accidents involving a single given that alcohol was involved? a. 50/75 b. 50/170 c. 120/170 d. 120/400 To conduct a research project on college student income, the number of students to sample needs to To estimate the mean population income, we decide to use a 1% level of significance. The desired E The standard deviation from other studies of student income is $1500. Referring to Problem C, using a 1% level of significance, the critical value is a. 1.96 b. 1.64 c. 0.005 d. 1.00 Referring to Problem C, what sample size is required? a. 20 b. 1 c. 217 d. 152 A multiple-choice test has 30 questions. There are 4 choices for each question. A student studied for the test decides to answer all questions randomly. What type of probability used to figure out his chance of getting at least 20 questions right? a. Binomial distribution b. Normal distribution c. Standardized normal distribution d. None of the above Two normal distributions are compared. One has a mean of 10 and a standard deviation normal distribution has a mean of 10 and a standard deviation of 2. Which of the following a. the locations of the distributions are different b. the distributions are from two different families c. the dispersions of the distributions are different d. the dispersions of the distributions are the same. An insurance company needs to assess the risks associated with providing hurricane average number of tropical storms or hurricanes that hit Florida is 2 per year, the independent, and the data follows a Poisson distribution, what is the probability of with no hurricanes? a. 0 b. A total of 1 c. 27.4% d. 13.5%

Explanation / Answer

Most of the questions have some part missing in the right so the only questions which can be attempted is 8.

8. Option A is correct.

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