how many different ways can four people: Andy, betty, cindy, and doug, sit in a
row at the cinema if andy and betty must sit together?
A) 18
b) 6
c) 12
d) 24
...
urn 1 contains 5 red balls and 3 black balls. Urn 2 contains 3 red balls and 1 black
ball. Urn 3 contains 4 red balls and 2 black balls. If an urn is selected at random and
a ball is drawn. Find the probability it will be red?
A)
2/3
b)
49/72
c)
23/72
d)
49/24
الأقوآس بالعربي ترى يعني زي مسلآ في دي , 49 ÷ 24
...
a student takes a 7 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) 0.346
b) 0.043
c) 0.173
d) 0.130
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إللي عليهآ لون أحمر هيآ الصـوح , مو بس صدعت منهـآ إلآ وصل حدي
فـ الله يسعد و يوفق إللي يجــــــآوبهـآ و فآلـو الـ full mark
=)