Chapter 5: Q 5.43. (page 209)
Constract a venn diagram representing the event.
Part (a) .
Part (b).
Short Answer
Part (a) .
Part (b) .
Chapter 5: Q 5.43. (page 209)
Constract a venn diagram representing the event.
Part (a) .
Part (b).
Part (a) .
Part (b) .
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Get started for freeAn experiment has 20 possible outcomes, all equally likely. An event can occur in five ways. The probability that the event occurs is .
In Exercises 5.16-5.26, express your probability answers as a decimal rounded to three places.
Coin Tossing. A balanced dime is tossed three times. The possible outcomes can be represented as follows.
Here, for example. HHT means that the first two tosses come up heads and the third tails. Find the probability that
(a) exactly two of the three tosses come up heads.
(b) the last two tosses come up tails.
(c) all three tosses come up the same.
(d) the second toss comes up heads.
Explain what is wrong with the following argument: When two balanced dice are rolled, the sum of the dice can be 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, or 12, giving 11 possibilities. Therefore the probability is that the sum is 12.
An experiment has 40 possible outcomes, all equally likely. An event can occur in 25 ways. The probability that the event is .
In Exercises 5.16-5.26, express your probability answers as a decimal rounded to three places.
Graduate Science Students. According to Survey of Graduate Science Engineering Students and Postdoctorates, published by the U.S. National Science Foundation, the distribution of graduate science students in doctorate-granting institutions is as follows.
Frequencies are in thousands. Note: Earth sciences include atmospheric and ocean sciences as well.
A graduate science student who is attending a doctorate-granting institution is selected at random. Determine the probability that the field of the student obtained is
(a) psychology.
(b) physical or social science.
(c) not computer science.
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