Q1: Choose the right answer, 1- The study that use the historical recorded process data is: a) Experiment b) Observational study c) Retrospective study d) Engineering Method 2- Modification on the model to find the best solution to the problem is a step of: a) Scientific method b) Observational study c) Retrospective study d) Statistical method 3- A sample space is discrete if: a) It contains an interval (either finite or infinite) of real numbers. b) It has non-real number c) It is countable No. from 0 to d) It is non-countable R 4- A permutation No. of (012) is: a) 3 b) 6 c) 24 d) 0 5- The number of combinations of 5 elements that can be selected from 10 elements, is a) 250 b) 251 c) 252 d) 253

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Q1: Choose the right answer,
1- The study that use the historical recorded process data is:
a) Experiment
b) Observational study
c) Retrospective study
d) Engineering Method
2- Modification on the model to find the best solution to the problem is a step of:
a) Scientific method
b) Observational study
c) Retrospective study
d) Statistical method
3- A sample space is discrete if:
a) It contains an interval (either finite or infinite) of real numbers.
b) It has non-real number
c) It is countable No. from 0 to o0
d) It is non-countable R
4- A permutation No. of (012) is:
a) 3
b) 6
c) 24
d) 0
5- The number of combinations of 5 elements that can be selected from 10 elements, is
a) 250
b) 251
c) 252
253
6- If the event A is included in the event B than:
a) P(ASB)
b) P(A2B)
c) P(1-P(A))
d) P(1-P(B))
7- The Event E1 and Event E2 are considered mutual exclusive if:
a) (E1 union E2) equal to zero
b) (E1 intersect with E2) equal to zero
c) E1 equal to E2
d) (E1 intersect with E2) equal to Ø
8- Two events (A) and (B) are independent if :
a) P(A | B) = P(A) or P(B | A) = P(B)
b) P(A U B) = P(A)P(B)
c) P(A n B) = P(A)+P(B)
d) P(A U B) = P(A)+P(B)
9- Expected value of the discrete random variable X is
a) -Σ
b) Er x²f(x)
c) Σ.
d) Ex xf(x)
10- If a Sample space is discrete and less than 10 and Event A={0,2,5, 7}, than:
a) =A' = {1,3,4,6,8,9,10}
b) A' = {1,2,4,6,8,9}
c) A' = {1,3,4,6,8,9}
d) A' = {1,2,3,4,6,8,9,10}
Transcribed Image Text:Q1: Choose the right answer, 1- The study that use the historical recorded process data is: a) Experiment b) Observational study c) Retrospective study d) Engineering Method 2- Modification on the model to find the best solution to the problem is a step of: a) Scientific method b) Observational study c) Retrospective study d) Statistical method 3- A sample space is discrete if: a) It contains an interval (either finite or infinite) of real numbers. b) It has non-real number c) It is countable No. from 0 to o0 d) It is non-countable R 4- A permutation No. of (012) is: a) 3 b) 6 c) 24 d) 0 5- The number of combinations of 5 elements that can be selected from 10 elements, is a) 250 b) 251 c) 252 253 6- If the event A is included in the event B than: a) P(ASB) b) P(A2B) c) P(1-P(A)) d) P(1-P(B)) 7- The Event E1 and Event E2 are considered mutual exclusive if: a) (E1 union E2) equal to zero b) (E1 intersect with E2) equal to zero c) E1 equal to E2 d) (E1 intersect with E2) equal to Ø 8- Two events (A) and (B) are independent if : a) P(A | B) = P(A) or P(B | A) = P(B) b) P(A U B) = P(A)P(B) c) P(A n B) = P(A)+P(B) d) P(A U B) = P(A)+P(B) 9- Expected value of the discrete random variable X is a) -Σ b) Er x²f(x) c) Σ. d) Ex xf(x) 10- If a Sample space is discrete and less than 10 and Event A={0,2,5, 7}, than: a) =A' = {1,3,4,6,8,9,10} b) A' = {1,2,4,6,8,9} c) A' = {1,3,4,6,8,9} d) A' = {1,2,3,4,6,8,9,10}
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