Midterm (No Answers)

Midterm (No Answers) - STAT 200 Midterm Exam(Section 103...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: STAT 200 Midterm Exam (Section 103, MWF 2pm) (Time: 50 minutes , Wednesday, October 27, 2010, 2:00 - 2:50pm, II ) Name: Student ID: This exam is to be done with closed notes/books. One “cheat sheet” ( 8 . 5 × 11 , two sided) is allowed. Make sure you write your name and student ID . Problem 1 (10 pts). Circle the correct answer: true (T) or false (F) (one answer only). (1) The sample mean always under-estimates the population mean because of sampling vari- ation. T F (2) There is only one way for a set of numbers to have standard deviation of zero and that is to have identical numbers. T F (3) A measure of spread (or spread-out) gives some idea about the size of the mean. T F (4) Although the probability of an event (on a single trial) occurring is 0.95, the event may not occur at all in 5 independent trials: T F (5) The mean of the sampling distribution of the sample mean is equal to the population mean. T F Problem 2 (40 pts). Circle the (one) answer that is the most appropriate. (1 ) The distribution of the values taken on by a statistic in a large number of samples from the same population is called (a) the parameter. (b) bias. (c) the sampling distribution. (d) a table of random digits. (2) What type of distribution is described by the following information: the mean is much larger than the median and the distribution is unimodal (assuming there is no outlier)?...
View Full Document

This note was uploaded on 05/09/2011 for the course STAT 200 taught by Professor Karim during the Spring '08 term at UBC.

Page1 / 4

Midterm (No Answers) - STAT 200 Midterm Exam(Section 103...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online