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Study Guide

by: Chelsea Notetaker

Study Guide 01:960:401

Chelsea Notetaker
GPA 3.28

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About this Document

Review Problems for Exam 1. It focuses on problems that seem to be more difficult (later material)
Basic Statistics for Research
Michael Miniere
Study Guide
Statistics, Stats, Stats 311, intro to statistics
50 ?




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This 4 page Study Guide was uploaded by Chelsea Notetaker on Thursday October 13, 2016. The Study Guide belongs to 01:960:401 at Rutgers University taught by Michael Miniere in Fall 2016. Since its upload, it has received 25 views. For similar materials see Basic Statistics for Research in Statistics at Rutgers University.


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Date Created: 10/13/16
Stats Exam 1 Study Guide BEFORE STARTING THIS Methods Of Sampling Method Best when Simple random sampling Whole population is available. Stratified sampling (random within targetThere are specific sub-groups to investigate (eg. groups) demographic groupings). Systematic sampling (every nth person) When a stream of representative people are available (eg. in the street). Cluster sampling (all in limited groups) When population groups are separated and access to all is difficult, eg. in many distant cities. 1. Classify the following as either categorical or numerical. If numerical, tell whether it is discrete or continuous. a. License Plate number b. Number of bananas in a barrel c. Length of a desk d. Home address e. Amount of time spent studying 2. Here are the blood types of blood donors. Make a table of frequency and relative frequency for each blood type. A B A O AB AB O A B B O O O A A B AB AB AB O 3. Career Rank Earnings Humanities 4 $46, 042 Healthcare 3 $51, 839 Math and Sciences 2 $57,171 Engineering 1 $63,998 A. Calculate the mean, median, and mode B. What is the 73 percentile? C. What is the 45 percentile? D. Which profession is at the 93 percentile? 4. There are 8 pieces of fruit in a bowl and of those 8, 3 are rotten. You pick two to eat (without replacement). What is the probability that a. Both apples are rotten b. One is rotten and the other is ripe 5. Listed is the data taken about students with the Flu. Age of patient Light Case Serious Case HAS THE FLU HAS THE FLU Yes | No Yes | No < 19 15 | 10 8 | 2 >19 15 | 15 20 | 10 Suppose a student is chosen at random. Find the probability that a. A student has a case of the flu b. A student is older than 19 c. A student has the flu and is below 19 d. A student has a serious case of the flu and is above 19 6. In New Jersey, 15% of the population has lung disease. Of those having lung disease 85% are smokers. Of those not having lung disease, 16 % are smokers. Determine the probability that a randomly selected smoker has lung disease? (Hint: Make a table) 7. You plan on hiring 2 out of 4 people with different years of experience. Person one has 1 year of experience, person two has 4 years of experience, person three has 6 years of experience and person four has 3 years of experience. You select the employees at random. Let X denote the sum of their years experience. Obtain the probability distribution of X. 8. A math teacher gave her class two exams. 30% of the class passed both exams and 50% of the class passed the first exam. What percent of those who passed the first test also passed the second? 9. nCr= 8C6 = ( )6


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