MAT 1580 Name Instructions: sen The point value on each problem occurs to the le

Question

MAT 1580 Name Instructions: sen The point value on each problem occurs to the left of the problem. You may use your book and the Formulas and Tables tear-out sheet from the book, if there is no other writing on it. Notes and scrap paper are not allowed. For calculator problems, write the command and information you entered. Do the problem with charts and formulas unless you are told to use the calculator. 1) 2) 3) 4) You may assume that each sample is a simple random sample. 5) Your exam score will be the number of points you earn on this test multiplied by 2 pts) 1. Name 2 things wrong with the given probability distribution. 2 P(x) 02 1.06 29 0 Use the given probability distribution to answer the questions. Let x be the number of parkin received in one year by a driver in a city. 2. P(x) 832 .085 034 .029 .012 .007 001 ts) a. Find the probability that a randomly selected driver in the city will have more than 1 parki that year b. Is four a significantly high number of parking tickets? Explain why or why not.

Explanation / Answer

Solution-

1. Two thing tha are wrong are-

A. Probability for X=1 is greater than 1.

B. SUm of probabilities is also greater than 1.

2. (a) Required probability =

P(X >1) = 0.034 + 0.012 + 0.007 + 0.001

= 0.083

(b) Yes . 4 tickets is significantly high as its probability of occurence = 0.012 which is very low.

Thanks!

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