Test12009 - Test 1A Oct 16 2009 Math 1P98 Name Box number ....

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

View Full Document Right Arrow Icon
Test 1A Oct 16 2009 Math 1P98 Name ………………………………………………… Box number ……………. (Write your student number on page 2) Answers should be correct to at least 3 significant digits. Leave probabilities as fractions where possible. A non graphing calculator that has only up to 2 lines of display and no List function, may be used. Also a half piece of paper handwritten, not printed or typed, may be brought to the test. Good Luck! ………………………………………………………………………………………… 1. [5 marks] Consider the following histogram of the number of times in a month a runner goes out for a run of at least 5 km. 25 20 15 10 5 16 14 12 8 6 4 2 0 Frequency 7 55 Runs/month a. The sample size is ………runners. b. The mean number of runs/month is found by using formula: and calculates to be : ……… runs/month. c. The class boundaries of the class with the highest frequency are : d. To increase the standard deviation of this data, the histogram bars representing the lowest frequency would have to be moved left toward 0 / right to 15 ? (Circle one.) ……………………………………………………………………………………………. . 2. [6 marks] A running group went for a practice run on a trail. There were 8 male and 12 female runners. a. How many ways can a sample if 5 runners be chosen from these for an interview by the media? b.
Background image of page 1

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

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 11/04/2011 for the course MATH Math 1P98 taught by Professor D.miners during the Fall '11 term at Brock University.

Page1 / 5

Test12009 - Test 1A Oct 16 2009 Math 1P98 Name Box number ....

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