Probability One Then Other
Quiz
•
Mathematics
•
University
•
Practice Problem
•
Hard
Barbara White
FREE Resource
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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Company A produces 10% defective products, Company B produces 20% defective products and C produces 5% defective products. If choosing a company is an equally likely event, then find the probability that the product chosen is defective.
0.22
0.12
0.11
0.21
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Suppose box A contains 4 red and 5 blue coins and box B contains 6 red and 3 blue coins. A coin is chosen at random from the box A and placed in box B. Finally, a coin is chosen at random from among those now in box B. What is the probability a blue coin was transferred from box A to box B given that the coin chosen from box B is red?
15⁄29
14⁄29
1⁄2
7⁄10
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
If A ⊂ B and B ⊂ A then,
P(A) > P(B)
P(A) < P(B)
P(A) = P(B)
P(A) < P(B)
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A and B are two events such that P(A) = 0.4 and P(A ∩ B) = 0.2 Then P(A ∩ B) is equal to
0.4
0.2
0.6
0.8
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
If P(B⁄A) = p(b), then P(A ∩ B) =
p(b)
p(a)
p(b).p(a)
p(a) + p(b)
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Find the number of ways of arranging the letters of the words DANGER, so that no vowel occupies odd place.
36
48
144
96
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A bag contains 2 red, 3 green and 2 blue balls.Two balls are drawn at random.What is the probability that none of the balls drawn is blue?
10/21
11/21
2/7
5/7
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