Module 2 Quiz (Solutions)

Select the most appropriate resPonse.

1' What is the set of all possible outcomes of a probability experiment?

a) compliment

b) Venn diagram

c) sample space

d) events

L 2. lf the computed probability of an event occurring is 0.01. \Mrich of the following statements is correct?

a) The event is likely to occur.

b) We would expect the event to occur about one percent of the time

c) The event cannot occur.

d) All of the above.

A. True or False.

A probability cannot be negative or greater than 1.

True

False

a)

b)

L 4. lf the probability of an event is 1, the event is impossible.

a)

b)

True

False

1L- evcr* woulA, be a- Ccalart"\.

Find the indicated ProbabilitY.

5. The probability of an individual having Type O

type other than O?

blood is 0.45. What is the probability of having a blood

a)

b)

c)

d)

e)

0.45

-0.45

0.55

-0.55

0.20

7fits fcfriw'rctt' +tq t dvrTr I a m'c*+>f

P(o')- l-r(q = l-,'/T

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Select the most appropriate response.

,,.'r T) J/ 6' Two events are ggE!!g.g![ if when one occurs:

a) The probability of the other occurring is unchanged.

b) The other event will always occur.

c) The other will never occur.

d) The probability of the other occurring is changed.

-l wo e'tovtb A/1"" d'tl*'?,/-*f f

+1- p".t'-*t''l'\ 6Y1L

ln wA2h1"-J+ftz olf*

hat ocureal or rt ot

Select the most appropriate response.

A ,. Two events are independent if when one occurs:

The probability of the other occurring is unchanged.

The other event willalways occur.

The other will never occur.

The probability of the other occurring is changed.

a)

b)

c)

d)

3' Select the most appropriate response.

The Multiplication Rule says that P(A and B) = P(A) ' P(B).What must be true about events A and B

for this rule to apply?

a) The events must be disjoint.

b) The events must be indePendent.

c) The events must be mutually exclusive.

d) Two of the above

e) All of the above

Be

Select the most appropriate response.

An event A will occur with probability 0.4. An event B will occur with probability 0.6. The probability that

both A and B will occur is 0.20. We may conclude

5,,,, .a /(4)(,t")

?(r ^, a) r) + P(A)?(s)

b)

c)

d)

that events A and B are independent.

that events A and B are dePendent.

that either A or B alwaYs occurs.

that events A and B are mutually exclusive.

+. e\rz'" t3 a\'- dj+4)AA

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