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## Statistics

Choose the correct choice and answer the following problems.

1.  On an exam on probability concepts, Sue had an answer of 13/8 for one problem. give details how she knew that this result was incorrect.

2.   "You cannot conclude the exact decimal-number value of Π."

a.1

b.3.14

c.0

d.0.5

3. What is the likelihood of an event that is certain to occur?

a.0.95

b.1

c.0.99

d.0.5

4.  A bag contains 2 red marbles, 3 blue marbles, and 5 green marbles. If a marble is at random selected from the bag, what is the probability that is blue?

5.  A multiple choice problem has 16 possible answers, only one of which is correct. Is it "unusual" to answer a problem correctly is a random guess is made?

6.  Based on meteorological records, the probability that it will snow in a certain town on January 1st is 0.206. Find the probability that in a given year it will not snow on January 1st in that town.

7.  The pH level in a shampoo

i. Discrete

ii. Continuous

8.  If a person is randomly selected from a certain town, the possibility distribution for the number, x, of siblings is as described in the accompanying table.

9. Choosing 5 people (without replacement) from a group of 59 people, of which 15 are women, keeping track of the number of men chosen.

 x P(x) 0 0.27 1 0.29 2 0.23 3 0.10 4 0.08 5 0.02

a. Not binomial: there are too many trials.

b. Procedure results in a binomial distribution.

c. Not binomial: there are more than two outcomes for each trial.

d. Not binomial: the trials are not independent.

10.  The probability that Z lies between 0 and 3.01

Statistics and Probability, Statistics

• Category:- Statistics and Probability
• Reference No.:- M923238

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