2004-Fall-Midterm_s

# 2004-Fall-Midterm_s - More PastPaper:...

This preview shows page 1. Sign up to view the full content.

This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: More PastPaper: http://ihome.ust.hk/~cs_gxx Numerical Answers of Mid-term Exam 2004 Question 1 (b) 86.24. (c) i. 0.258 ii. P{R = 33000}= Pr{X≤85}= 0.258 P{R = 32000}= Pr{X=86}= 0.269 P{R = 31000}= Pr{X=87}= 0.304 P{R = 30000}= Pr{X=88}= 0.169 iii. 31616.5 Question 2 (a) i. 0.4 ii. E(X)= 69,300,000 (b) i. 0.0129 ii. E(X)= – 8 ,120,000 iii E(X)= –700,000 (c) E(Consult)= 15,050,000 E(Not Consult)= 10,000,000 Question 3: 0.3333 0.375 0.5 0.7222 k/ ~c s_ gx x/ (b) (c) (d) (e) :// ht tp (d) The combined sample mean is 5.0217. ih om e. us t.h Question 4: (a) The sample mean is 5.3689 The sample variance is 6.0405. 5 More PastPaper: http://ihome.ust.hk/~cs_gxx The sample standard deviation is 5.7133. ht tp :// ih om e. us t.h k/ ~c s_ gx x/ Question 5: (a) 0.15 (b) 0.3333 (c) (i) 0.51108 (or 0.5120) (ii) The ‘cut loss’ value b is -3.64%. 6 ...
View Full Document

Ask a homework question - tutors are online