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[STATS 2D03] - Final Exam Guide - Ultimate 23 pages long Study Guide!

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whitecrab690
29 Nov 2016
School
McMaster University
Department
Statistics
Course
STATS 2D03
Professor
David Lozinski

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Document Summary

One has m different possibilities and the other has n . The number of different outcomes is mxn xperiment 2. If you have r experiments each with ni possible outcomes . the total number of possible outcome a. Notice that the order matters & you can have the same letter more than. Example : 5 people are to deliver presentations . How many ways those be ordered ? can spossities. General : the number of ways you can arrange n objects in order is n ! ( the order counts ) Example : how many words can be made with no letter being duplicated ? t. es. General : choosing r objects from a set of n without replacement (order matters ) of ways ( n - l ) x ( n - r +1 ) . nx. Example : three couples are taking 4 cranky kids to the movies.

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Related textbook solutions

Introductory Statistics
OER Edition, 2013
Openstax
ISBN: 9781938168208

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Related Questions

 

 A professor of statistics was interested in exploring a possible relation between student’s performance on the final exam (pass or fail) and their attendance at the final review session. Of the 200 students enrolled in the class, eighty attended the final review session. Sixty of the students who attended the final review passed the final exam and fifty of those who did NOT attend the review passed the final exam. Is there evidence for a difference between the two groups in terms of their performance on the final exam? 

In a large class, there were 274 students who wrote both the midterm and the final exam. The standard deviation of the midterm grades was 13, and that of the final exam was 16. The correlation between the grades on the midterm and the final was 0.6.

Based on the least squares regression line fitted to the data of the 274 students, if a student scored 19 points below the mean on the midterm, then how many points below the mean on the final would you predict her final exam grade to be?

The predicted final exam grade is  below the mean on the final. (Round your answer to one decimal place, but do not round in intermediate steps.)

A student receives test scores of 62, 83, and 91. The student's final exam score is 88 and homework score is 76. Each test is worth 20% of the final grade, the final exam is 25% of the final grade, and the homework grade is 15% of the final grade. What is the student's mean score in the class? (Hint: find the weighted mean)