Question 3 The probability that a student correctly answers on the first try (the event A) is P(A) = 0.1. If the student answers incorrectly on the first try, the student is allowed a second try to correctly answer the question (the event B). The probability that the student answers correctly on the second try given that he answered incorrectly on the first try is 0.3. Find the probability that the student correctly answers the question on the first or second try. a) O 0.31 b) 0 0.37 c) O 0.03 d) O0.19 e) O 0.40 f) O None of the above.
Question 3 The probability that a student correctly answers on the first try (the event A) is P(A) = 0.1. If the student answers incorrectly on the first try, the student is allowed a second try to correctly answer the question (the event B). The probability that the student answers correctly on the second try given that he answered incorrectly on the first try is 0.3. Find the probability that the student correctly answers the question on the first or second try. a) O 0.31 b) 0 0.37 c) O 0.03 d) O0.19 e) O 0.40 f) O None of the above.
Chapter8: Sequences, Series,and Probability
Section: Chapter Questions
Problem 41CT: On a game show, a contestant is given the digits 3, 4, and 5 to arrange in the proper order to form...
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Transcribed Image Text:Question 3
The probability that a student correctly answers on the first try (the event A) is P(A) = 0.1. If the student answers incorrectly on the first try,
the student is allowed a second try to correctly answer the question (the event B). The probability that the student answers correctly on the
second try given that he answered incorrectly on the first try is 0.3. Find the probability that the student correctly answers the question on
the first or second try.
a) O 0.31
b) 0 0.37
c) O 0.03
d) O 0.19
e) O 0.40
f) O None of the above.
Transcribed Image Text:In testing a certain kind of missile, target accuracy is measured by the average distance X (from the target) at which the missile explodes.
The distance X is measured in miles and the sampling distribution of X is given by:
10 50 100
P(X) /18
1 2, 11
Calculate the mean of this sampling distribution.
a) O 74.8
b) O 73.3
c) O 70.8
d) O 1300.0
e) O 36.1
f) O None of the above
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