62% of all students at a college still need to take another math class. If 4 students are randomly selected, find the probability that X a. Exactly 2 of them need to take another math class. 0.2941 b. At most 2 of them need to take another math class. 0.5131 c. At least 2 of them need to take another math class. 0.781 X d. Between 2 and 3 (including 2 and 3) of them need to take another math class. 0.2941 X X
62% of all students at a college still need to take another math class. If 4 students are randomly selected, find the probability that X a. Exactly 2 of them need to take another math class. 0.2941 b. At most 2 of them need to take another math class. 0.5131 c. At least 2 of them need to take another math class. 0.781 X d. Between 2 and 3 (including 2 and 3) of them need to take another math class. 0.2941 X X
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
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62% of all students at a college still need to take another math class. If 4 students are randomly selected,
find the probability that
A
N
a. Exactly 2 of them need to take another math class. 0.2941
1
b. At most 2 of them need to take another math class. 0.5131
c. At least 2 of them need to take another math class. 0.781 X
d. Between 2 and 3 (including 2 and 3) of them need to take another math class. 0.2941
Round all answers to 4 decimal places.
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2
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