mid06sol - Solution Mid06 1. 2.(a) The uncertainty before...

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

View Full Document Right Arrow Icon
Solution Mid06 1. 2.(a) The uncertainty before an experiment causes the variation of outcomes after the experiment. Probability measures the uncertainty before the experiments and thus it can explain the variation after the experiment. (b) P(higher for the year | higher first week)= 29/34=0.853. (c) P(Higher for the year)= 39/54=0.722 not equal 0.853, therefore dependent. (d) H L FH 28 2 P(H | FH)= 28/30 = 0.933 FL 11 13 3. (a) P(X>1.6) = P(Z> (1.6 – 1.2)/0.3)=P(Z>1.33)=0.0918 (b) ) 3 . 0 ( 67 . 0 2 . 1 ± =(1.0, 1.4) (c) m+0.44sd=1.8 m-0.44sd=1.2 m=1.5, sd=0.68. (d) 3 Q = 2.3, 1 Q = 2.3 – 2*(2.3 – 1.6) = 0.9, inter-quartile range = 2.3 – 0.9 = 1.4 4. (a) 097 . 0 ) 7 . 0 ( ) 3 . 0 ( 4 7 3 4 = (b) 2557 . 0 ) 3 . 0 ( 6 6 7 . 0 ) 3 . 0 ( 5 6 ) 7 . 0 ( ) 3 . 0 ( 4 6 ) 7 . 0 ( ) 3 . 0 ( 3 6 6 5 2 4 3 3 = + + + ⎜⎟ 5.(a) Let X be the performance rating and Y be your fee, then X Y = 120000 9 . 2 1 . 0 5 2 . 0 4 3 . 0 3 3 . 0 2 1 . 0 1 ) ( = + +
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 02/27/2010 for the course ISOM ISOM111 taught by Professor Anthonychan during the Spring '09 term at HKUST.

Ask a homework question - tutors are online