Answer:
I don't really understand but Hope's this helps
Step-by-step explanation:
what is the question
Answer:
3.5
Step-by-step explanation:
Hope this helped! :)
Answer:
Larry places 19 puzzles
Step-by-step explanation:
Step one:
given data
let the number of puzzles Larry places be x
and let the number of puzzles Drew places be y
so
y=3x-11
Step two:
We are told that Drew places at least 10
so for x= 10
y= 3*10-11
y=30-11
y=19
The probability that the student gets between 1 and 6, exclusive, questions correct will be 0.7872...
<em><u>Explanation</u></em>
If the probability of success is
, then the probability of
successes in
trials will be......

Here, the quiz has total 12 questions and each question has 4 answer choices. So,
and 
The student gets between 1 and 6, exclusive, questions correct. It means <u>there can be 2 or 3 or 4 or 5 questions as correct</u>. So....
The probability of 2 or 3 or 4 or 5 questions correct will be:
