Thursday

April 24, 2014

April 24, 2014

Posted by **Daniel** on Thursday, March 7, 2013 at 10:10am.

(1) Find the average number of wrong answers.

(2) Find the SD of the number of wrong answers.

- Statistics -
**PsyDAG**, Thursday, March 7, 2013 at 11:01am1. 10 - 6.2 = ?

2. 1.4

- Statistics -
**Anonymous**, Monday, March 11, 2013 at 5:49pm1.3.8

2.1.4

- Statistics -
**Gary**, Tuesday, March 12, 2013 at 1:23am"number wrong" = 10 - "number right" is a linear transformation that says, "Multiply the list by -1, then add 10." The addition does nothing to the SD, and the multiplication by -1 multiplies the SD by |-1|=1. So there's no change to the SD. In terms of the histogram, the histogram for "number wrong" is a flip of the histogram for "number right," so the SD stays the same.

**Related Questions**

Math 150 - an online quiz is made of 10 multiple choice questions. each question...

statistics - a quiz consists of 30 true or false questions. if the student ...

Probability/Statistics - A quiz consists of 10 multiple-choice questions, each ...

Finite Math - A biology quiz consists of 10 multiple -choice questions. 7 must ...

Statistics - A quiz consists of 10 multiple choice questions. Each question is ...

Statistics - In the quiz in Exercises 1 and 2, the grading scheme is as follows...

statistics - The following are all quiz scores of a student in a statistics ...

Binomial Distribution - A biology quiz consists of twelve multiple-choice ...

LBCC - A multiple choice quiz consists of 20 questions, each with 3 possible ...

stat probability - A multiple choice quiz consists of 20 questions, each with 3 ...