STAT 263 Lecture Notes - Lecture 6: Sample Space, Central Tendency, Kare

• School: Queen's University
• Department: Statistics
• Course: STAT 263
• Professor: Charles Arthur Molson

Document Summary

2 sig digits on most answers unless otherwise stated. Ex. the rando variable x is normally distributed with mu=52. 30 and sigma=8. 75. Find the prob x will fall b/n 40. 4 and 48. 3. Use to have to do this by converting each boundary into z values but now your calc can do it. Press mode, down, 3, 2 and enter the values below. You should still draw the diagram (curve) If the prob jane goes to class is 0. 85 and the prob edna goes to class is 0. 95. What is the prob that only one of the students goes to class? (0. 85)(0. 05) + (0. 15)(0. 95)=0. 185. Formulas (will be given on exam) Quick review of key concepts. How to do on calc: mode, 3, 1 then enter all the values and press ac. Press shift 1, 4, 2 (shows x bar) then = Median position= (n+1)/2 x= x/n= (3+4+6+7+1+4+5)/7=4. 3. Where n is the number of values or pop size.