1.Based on a survey, 3 out of 10 students like to play the flute. For a class of 700, how many flutes should the teacher pre-order?
A) 70
B)210
C)300***
D)490

2. The probability of getting a winning scratch off ticket is 4 out of 10. If Dan buys 25 tickets how many of those would you expect to be winning tickets?
A)10
B) 11
C)14**
D)15

3. The probability of winning a game is 15% How many times should you expect to win, if you play 60 times?
A)9
B)18**
C)45
D)51
Please check

Respuesta :

Going to try to answer this, if its wrong ill put in the other answers in the comments

#1 210.
210 Because .3 x 700 is 210

#2 10
25 x .4 freakin 10

#3 is the same thing
60 is .15