السلام
ضروري الله يسعدكم ابغى حل الاسئلة ماباقي شي على الاختبار وانا مو عارفة احلها
11.
The probability of randomly selecting 3 science books and 4 math books from 8 science
books and 9 math books is
A)
0.363
B)
0.5
C)
0.76
D) 0.001
15.
How many ways can a person select 4 television commercials from 33 television
commercials?
A)
33!
(33-4)!
B)
33!
(4! 29!)
C)
433
D)
4
33
16.
If 4 different-sized washers ( غسالات ) are arranged in a row, then the probability that they
will be arranged in order of size is
A)
4!
B)
1
24
C)
1
12
D)
1
4
22.
A student takes a 6 question multiple choice quiz with 4 choices for each question. If the
student guesses at random on each question, what is the probability that the student gets
exactly 3 questions correct?
A)
0.088
B)
0.0512
C)
0.132
D) 0.022