Posted by AmmanJordan on Sunday, April 21, 2013 at 2:35pm.
To get an A grade on the test, you need a total score of more than 16 points. One of the students knows the correct answer to 6 of the 20 questions. The rest she guesses at random by tossing a coin (one toss per question, as in 4B). What is the chance that she gets an A grade on the test?

statistics  Melo, Saturday, April 27, 2013 at 9:40am
20
Answer This Question
Related Questions
 Statistic  To get an A grade on the test, you need a total score of more than ...
 science  To get an A grade on the test, you need a total score of more than 16 ...
 maths  To get an A grade on the test, you need a total score of more than 16 ...
 elem alg  On a certain test, the student gets 3 points for each correct answer ...
 Math  On a truefalse test, each question has exactly one correct answer: true...
 math,correction  can someone correct this for me please. Statistics. Sam must ...
 math correction  can someone correct this for me.or teach me if i'm wrong ...
 Statistics  There are 100 questions from a SAT test, and they are all multiple ...
 Finite  Assume that the test has 5 true/false questions, and 10 multiple choice...
 Elementary Statistics  There are 100 questions from an SAT test, and they are ...
More Related Questions