Practice_Quiz_II

Practice_Quiz_II - Practice Quiz II 1. Two events with...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
1. Two events with positive probabilities are impossible to have the following relationship: a) Independent and mutually exclusive. b) Dependent and mutually exclusive. c) Independent and Not mutually exclusive. d) Dependent and Not mutually exclusive 2. The probability that a new advertising campaign will increase sales is assessed as being 0.80. The probability that the cost of developing the new ad campaign can be kept within the original budget allocation is 0.40. Assume that the two events are independent. The probability that the cost is not kept within budget or the campaign will not increase sales is: a) 0.88 b) 0.68 c) 0.32 d) 0.12 3. If you roll two fair dice, what is the probability that the sum on the two dice equals 6? a) 3/36 b) 4/36 c) 5/36 d) 6/36 4. The human resources manager at a company has classified applicants according to whether or not they have any computer skills (Yes or No), and whether or not they have previous work experience (Yes or No). The results are summarized below: Work Experience Computer skills Yes No Yes 80 40 120 No 60 30 90 140 70 210 Which of the following statements is not correct? a) If an applicant is randomly selected and the applicant has previous work experience, then the probability that the applicant has computer skills is about 0.57 b) If an applicant is randomly selected, the probability that the applicant has no previous work experience but has computer skills is about 0.19 c) The data given above indicate that an applicant having computer skills is independent of the applicant having previous work experience d) If an applicant is randomly selected, the probability that the applicant either has no computer skill or has no previous work experience is about 0.76 5 . A company has 2 machines that produce widgets. An older machine produces 23% defective widgets, while the new machine produces only 8% defective widgets. In addition, the new machine produces 3 times as many widgets as the older machine does. What is the probability that a randomly chosen widget produced by the company is defective? a)
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 12/20/2011 for the course ACCT/MGMT 2010 taught by Professor A during the Spring '11 term at HKUST.

Page1 / 4

Practice_Quiz_II - Practice Quiz II 1. Two events with...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online