Mathematics, 15.10.2020 14:01 Pinkywoo
A statistics teacher gives a multiple-choice exam with 20 questions. The teacher wants to discourage guessing on the exam, so for each question the student earns 1 point for a correct answer, 0 points for no answer, and -1 point for a wrong answer. Consequently, if a student answered every question incorrectly the student would earn a score of -20 on the exam. However, if a student answered every question correctly, the student would earn a score of 20 on the exam. After the exam, the teacher distributes the list of test scores and asks the class to calculate the standard deviation. The first student to finish the calculations says that the standard deviation is -1.8.
a. True
b. False
Answers: 3
Mathematics, 21.06.2019 20:00, aaliyahvelasauez
Last one and the bottom answer choice is y=(x-4)^2+1 you guys!
Answers: 1
Mathematics, 21.06.2019 20:30, faizanaj1192
Raymond just got done jumping at super bounce trampoline center. the total cost of his session was $43.25 . he had to pay a $7 entrance fee and $1.25 for every minute he was on the trampoline. write an equation to determine the number of minutes (t) that raymond was on the trampoline.
Answers: 1
Mathematics, 22.06.2019 01:00, yselahernandez02
Suppose the equation ||x-a|-b|=2008 has 3 distinct real roots and a not =0. find the value of b.
Answers: 1
A statistics teacher gives a multiple-choice exam with 20 questions. The teacher wants to discourage...
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