If the probability that it will rain tomorrow is 0.38, then the probability that it will not rain tomorrow is

If the probability that it will rain tomorrow is 0.38, then the probability that it will not rain tomorrow is:

A.0.38

B.-0.38

C.0.62

D.1.38

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Question 2 of 20

1.0 Points

If events A and B are mutually exclusive, then the probability of both events occurring simultaneously is equal to

A.0.5

B.1.0

C.any value between 0.5 and 1.0

D.0.0

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Question 3 of 20

1.0 Points

The table below shows the preferences for elective courses of students who are undecided about their majors.

Philosophy Digital Art Film Studies

Male 9 16 22

Female 6 18 14

What is the probability of randomly selecting a student who is female or prefers Digital Art?

A.46.2%

B.84.7%

C.63.5%

D.21.2%

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Question 4 of 20

1.0 Points

f$P(ar{A})=1-P(A)f$ is the:

A.addition rule

B.rule of opposites

C.rule of complements

D.commutative rule

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Question 5 of 20

1.0 Points

A jar contains four white marbles, five red marbles, and six black marbles. If a marble is selected at random, find the probability that it is white or black .

A.2/15

B.2/3

C.1/5

D.2/5

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Part 2 of 6 –

Question 6 of 20

1.0 Points

One of the requirements for a binomial experiment is that there must be a(n) _____ number of trials.

A.odd

B.random

C.infinite

D.fixed

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Question 7 of 20

1.0 Points

If a student randomly guesses at 20 multiple-choice questions, find the probability that the student gets exactly four correct. Each question has four possible choices.

A.0.19

B.0.17

C.0.08

D.0.23

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Question 8 of 20

1.0 Points

A drug is reported to benefit 40% of the patients who take it. If 6 patients take the drug, what is the probability that 4 or more patients will benefit?

A.0.138

B.0.179

C.0.667

D.0.862

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Question 9 of 20

1.0 Points

We assume that the outcomes of successive trials in a binomial experiment are:

A.identical from trial to trial

B.probabilistically dependent

C.probabilistically independent

D.random numbers between 0 and 1

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Question 10 of 20

1.0 Points

The following data were obtained from a survey of college students. The variable X represents the number of non-assigned books read during the past six months.

x

0

1

Question 11 of 20

1.0 Points

Accepted characters: numbers, decimal point markers (period or comma), sign indicators (-), spaces (e.g., as thousands separator, 5 000), “E” or “e” (used in scientific notation). NOTE: For scientific notation, a period MUST be used as the decimal point marker.

Complex numbers should be in the form (a + bi) where “a” and “b” need to have explicitly stated values.

For example: {1+1i} is valid whereas {1+i} is not. {0+9i} is valid whereas {9i} is not.

The following data were obtained from a survey of college students. The variable X represents the number of non-assigned books read during the past six months.

x

0

1