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a. P(x=7] = 0.7 b. standard deviation of X = 10*0.7*0.3 = 2.1 C. ELX) = 10+0.7 = 7 d. Var(X) = 10*0.7 = 7

a. P(x=7] = 0.7 b. standard deviation of X = 10*0.7*0.3 = 2.1 C. ELX) = 10+0.7 = 7 d. Var(X) = 10*0.7 = 7

A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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just 11 and 12 please!! thank you so much

QUESTION 10 Two events A and B are mutually exclusive, and PA) > P(B). Which one of the following statements is incorrect? O a. PIA U B) = P(A) + P(B) O b. PLAN not-B8) = P(A) - P(8) O C. Pfnot-A) < P(not-B) O d. PIAN B) = 0 QUESTION 11 In a certain country, 70% of drivers have car insurance. Let X denote the number of drivers with car insurance from a sample of 10 randomly selected drivers. Choose all the correct answers. Note that you willget a penalty mark for choosing an incorrect answer. There is no penalty for not choosing a correct answer, but also no marks are awarded for a correct answer that is not selected. O a. PIX=7) = 0.7 O b. standard deviation of X = 10*0.7*0.3 = 2.1 C. EIX) = 10*0.7 = 7 O d. VartX) = 10*0.7 = 7 QUESTION 12 Let X, the number of micro-flaws on the surface of a randomly selected, freshly painted car door of a certain type, have a Poisson distribution with parameter u = 5. Find P(4 < XS 7) and enter your answer to 4 decimal places here:
Transcribed Image Text:QUESTION 10 Two events A and B are mutually exclusive, and PA) > P(B). Which one of the following statements is incorrect? O a. PIA U B) = P(A) + P(B) O b. PLAN not-B8) = P(A) - P(8) O C. Pfnot-A) < P(not-B) O d. PIAN B) = 0 QUESTION 11 In a certain country, 70% of drivers have car insurance. Let X denote the number of drivers with car insurance from a sample of 10 randomly selected drivers. Choose all the correct answers. Note that you willget a penalty mark for choosing an incorrect answer. There is no penalty for not choosing a correct answer, but also no marks are awarded for a correct answer that is not selected. O a. PIX=7) = 0.7 O b. standard deviation of X = 10*0.7*0.3 = 2.1 C. EIX) = 10*0.7 = 7 O d. VartX) = 10*0.7 = 7 QUESTION 12 Let X, the number of micro-flaws on the surface of a randomly selected, freshly painted car door of a certain type, have a Poisson distribution with parameter u = 5. Find P(4 < XS 7) and enter your answer to 4 decimal places here:
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