Spring2011Exam1

Spring2011Exam1 - Spring 2011 FORM F Name Last: _ First: _...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Spring 2011 FORM F Name Last: ___________________ First: __________________ Exam 1: Chapters 1, 2, 3 Class Time: ________________________ Directions: Turn your cell phone OFF. Print your NAME and CLASS TIME on THIS EXAM. Print your NAME and CLASS TIME on your SCANTRON. • Write FORM F on your SCANTRON. • Each question has exactly one BEST answer. There are 21 questions. • You may write on this exam. There is no scratch paper allowed. • Each question is worth 5 points for a total of 105 points. This includes 5 bonus points! • If you have no note page, you must write NO NOTES on your SCANTRON. • Put your SCANTRON and PAGE of NOTES inside your EXAM. Before you start packing up your things, turn in your EXAM and SCANTRON. Then go back to your desk to pack up your materials. When your exam is returned, you will get back all materials you turned in. __________________________________________________________________________________________ Questions 1 – 3 refer to the following: Suppose we are interested in the percent of ALL homes in Santa Clara County with a complete emergency kit. A survey is conducted using a sample of 120 homes from Santa Clara County. 1. The PARAMETER is A. The percent of homes in the sample with a complete emergency kit. B. The percent of homes in Santa Clara County with a complete emergency kit. C. The number of homes in the sample with a complete emergency kit. D. The number of homes in Santa Clara County with a complete emergency kit. 2. The VARIABLE is A. The proportion of homes in the sample with a complete emergency kit. B. The number of homes in the sample with a complete emergency kit. C. The proportion of homes in Santa Clara County with a complete emergency kit. D. The number of homes in Santa Clara County with a complete emergency kit. 3. The sample of 120 homes consisted of all homes on 4 randomly selected streets in Santa Clara County. This is an example of A. Cluster sampling. B. Simple random sampling. C. Stratified sampling. D. Systematic sampling.
Background image of page 1

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

View Full DocumentRight Arrow Icon
Questions 4 – 6 refer to the following: The following table gives the number of earthquakes (worldwide) measuring 3.0 or more by Richter scale from January 1 – March 17 of the indicated years. (earthquake.usgs.gov/earthquakes/eqinthenews) 2011 2010 2009 2008 TOTAL 3.0 – 3.9 0 1 2 0 3 4.0 – 4.9 4 3 3 1 11 5.0 – 5.9 1 2 1 1 5 6.0 – 6.9 9 10 4 10 33 7.0 – 7.9 5 3 5 2 15 8.0 – 8.9 0 0 0 0 0 9.0 – 9.9 1 0 0 0 1 TOTAL 20 19 15 14 68 4. Find the probability that a randomly chosen earthquake measured 6.0 – 6.9 on the Richter scale AND occurred in 2010. A. 68 42 B. 68 33 C. 68 19 D. 68 10 5. Find the probability that a randomly chosen earthquake measured 7.0 – 7.9 on the Richter scale OR occurred in 2008. A.
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 13

Spring2011Exam1 - Spring 2011 FORM F Name Last: _ First: _...

This preview shows document pages 1 - 3. Sign up to view the full document.

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