Question:

Consider a family with a mother, father, and two children. Consider the following set of events: A1= {mother has influenza}; A2= {father has influenza}; A3= {first child has influenza}; A4= {second child has influenza}; B = {at least one child has influenza}; C = {at least one parent has influenza}; D = {at least one family member has influenza}. What does A1? A2 mean?

(a) Either the mother or the father has influenza (b) Both the mother and the father have influenza (c) Neither the mother nor the father has influenza (d) All the family members have influenza

2. Consider a family with a mother, father, and two children. Consider the following set of events: A1= {mother has influenza}; A2= {father has influenza}; A3= {first child has influenza}; A4= {second child has influenza}; B = {at least one child has influenza}; C = {at least one parent has influenza}; D = {at least one family member has influenza}. Are A3 and A4mutually exclusive events? (a) Yes (b) No (c) Maybe

3. Consider a family with a mother, father, and two children. Consider the following set of events: A1= {mother has influenza}; A2= {father has influenza}; A3= {first child has influenza}; A4= {second child has influenza}; B = {at least one child has influenza}; C = {at least one parent has influenza}; D = {at least one family member has influenza}. Express D in terms of B and C (a) D = B or C (b) D = B & C (c) D does not equal B or C

4. Consider a family with a mother, father, and two children. Consider the following set of events: A1= {mother has influenza}; A2= {father has influenza}; A3= {first child has influenza}; A4= {second child has influenza}; B = {at least one child has influenza}; C = {at least one parent has influenza}; D = {at least one family member has influenza}.

Suppose an influenza epidemic strikes a city. In 10% of families, the mother has influenza. In 10% of families, the father has influenza. In 2% of families, both the mother and father have influenza. Furthermore, suppose each child has a 20% chance of contracting influenza and there is a 10% chance both children become diseased. What is the probability that at least one child will get influenza? (a) 0.1 (b) 0.2 (c) 0.3 (d) 0.4

elearn.squ.educom/mod/quiz/attempt.php?attempt=10524428cmid=4853608page=4 LINEAR ALGEBRA AND E-learning services . SQU Libraries . SQU Portal Attendance English (on) + LINEAR ALGEBRA AND MUTIVARIATE CALCULUS FOR ENGINEERS Spring 2020 Question 5 Let's be a square plate with boundary C, having each side of length 2 units, lying in the plane * = 1 in R Answer saved QUIZ NAVIGATION Marked out of 16.00 F = |0, 22, Sy . Use Stokes's theorem to evaluate P Flog question OF. "(s ) ds . Then answer the following questions : Luqman Al M 118515 3. Choose curl F on the surface S: G.| 0. 2V. 2] Finish after I [(2-20). 0.0] [2. 2v. 0] 4. Choose the value of OF. r' (s) ds from the following: K. 8 L2 M. 30 1 . Choose the parametrization of the surface S: A ru, V ) = [ u, 1, v], Osus2, 0SV 3.1).A sample of size n is taken from a population with an unknown distribution, with mean u and standard deviation O. Which of the following statements about the sample mean distribution is true? Select one: 0 8. Using the Central Limit Theorem, X approximately follows X . Nu. b. Using the Central Limit Theorem, Xexactly followsx - Ntu. C. without Using the Central Limit Theorem, X approximately follows > . N p. =] 0 d Without Using the Central Limit Theorem, Xexactly follower . No