Probability Exercise 1

#Probability Review:  Mutually Exclusive EventsIndependent EventsDependent EventsConditional ProbabilitySubtraction RuleAddition RuleMultiplication Rule

Practice Examples :   Exercise 1 

Exercise 2

Q.1             www.limaglobal.com                                                                             

Quantity A                                                 Quantity B

1/36                                                         Probability of rolling

                                                                     two six sided dice

A.  If Quantity A is greater

B.  If Quantity B is greater

C.  If Quantity A and Quantity B are equal

D.  The relationship cannot be determined from given information

Solution;

Probability of rolling dice 1 = P (M) = 1/6

Probability of rolling dice 2 = P (N) = 1/6

So probability of rolling both the dice

P (M and N) = P (M) ยท P (N)

=  1/6  X  1/6

=  1/36

Here Quantity A and Quantity B both are equal.

The correct answer choice is C.

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Q.2

Quantity A                              Quantity B

0.50                           After rolling one 12 sided dice

randomly, the probability of getting prime numbers.

A.  If Quantity A is greater

B.  If Quantity B is greater

C.  If Quantity A and Quantity B are equal

D.  The relationship cannot be determined from given information

Solution;

Event M for rolling 12 sided dice and getting Prime numbers = 2, 3, 5, 7 and 11.

So the probability P (M) =   = 0.42

If we compare Quantity A with Quantity B, the value for Quantity A is greater, hence correct answer choice is A.

                                               

#Probability Review:  Mutually Exclusive EventsIndependent EventsDependent EventsConditional ProbabilitySubtraction RuleAddition RuleMultiplication Rule

Practice Examples :   Exercise 1         Exercise 2

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