{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

prac.mt1 ans

# prac.mt1 ans - Statistics 13A Spring 2010 Practice Midterm...

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

Statistics 13A, Spring 2010, Practice Midterm I Version A Name: ID: Instructions: 50 minutes, closed book midterm one letter-sized (double-sided) “cheat-sheet”, hand held calculator and scrap paper are allowed 20 multiple choice problems, 5 points each hand in both this midterm and scantron (the midterm will be used as a proof of your presence in the un- likely event of missing scantron) grading is based on scantron which will not be re- turned to you this is version A, please mark the corresponding circle on the scantran good luck! Midterm begins here. .. 1. Which among the following is a qualitative variable? (a) length of time between arrivals of buses at a terminal (b) depth of sediments in a riverbed (c) score received in a homework out of 60 points (d) time required to finish an exam (e) manufacturers of cars parked in a parking lot answer: e 2. A market share of 78.5% would be represented in a pie chart by a slice with a central angle of (a) 78.5 degrees (b) 39.2 degrees (c) 282.6 degrees (d) 141.3 degrees (e) 178.5 degrees answer: c ( 78 . 5 × ( 360 / 100 ) degrees) 3. The frequency table of the weights (in lbs.) of 50 trouts caught from a lake is given below. Class (in lbs.) Frequency 6.5 to less than 7.0 6 7.0 to less than 7.5 8 7.5 to less than 8.0 13 8.0 to less than 8.5 11 8.5 to less than 9.0 7 9.0 to less than 9.5 5

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

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### Page1 / 3

prac.mt1 ans - Statistics 13A Spring 2010 Practice Midterm...

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

View Full Document
Ask a homework question - tutors are online