Dona Dola Exam the one alternative that best completes the statement or answers

Question

Dona Dola Exam the one alternative that best completes the statement or answers the questio Answer the question. 1) Which of the following cannot be a probability? A) B) S1 D)3 2) What is the probability of an impossible event? A) 1 B) -1 C) 0.1 D) 0 3) In a certain town, 25% of people commute to work by bicycle. If a person is selected random! the town, what are the odds against selecting someone who commutes by bicycle? A) 1:3 B) 3:4 C)3:1 D)1:4 Find the indicated probability. 4) In a poll respondents were asked whether they had ever been in a car accident. 471 respo indicated that they had been in a car accident and 420 respondents said that they had not car accident. If one of these respondents is randomly selected, what is the probability of g someone who has been in a car accident? Round to the nearest thousandth, if necessary B) 0.002 C) 0.529 D) 1.12 A) 0.471 5) A die with 12 sides is rolled. What is the probability of rolling a number less than 11 A) 12 B) C) D) 10 12 6) A card is drawn from a well-shuffled deck of 52 cards. Find P(drawing an ace or a 9 D)

Explanation / Answer

1) Correct answer: option (B) 5/3
since it is not lies between 0 and 1
we know that probability value is always lies between 0 and 1

2) P(imposible event ) = 0
Correct answer: option (D)

3) Probability = 0.25 = 25/100 = 1/4
Odds against : (4-1) : 1 = 3:1
Correct answer: option (C)

4)
Probabiltiy = (471-420) / 471 = 0.1083
5) Correct answer: option (D) 10/12

16) P(X > 16.1) = P(Z > (16.1 - 15.2) / 0.9)= P(Z > 1) = 0.1587
Correct answer: option (A)
17) P(19.7 < X < 25.3) = P( (19.7-22) / 2.4 < Z < (25.3-22) / 2.4 ) = P(-0.95833 < Z <1.375) = 0.74648
Correct answer: option (D)

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