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QUIZ 1

Total questions: 10

Worksheet time: 7mins

Name
Class
Date
1.

IS A FUNCTION THAT ASSOCIATES A REAL NUMBER TO EACH ELEMENT IN THE SAMPLE SPACE.

a)

RANDOM VARIABLE

b)

VARIABLE

c)

CHOOSEN VARIABLE

d)

DISCRETE VARIABLE

2.

A SET OF POSSIBLE OUTCOMES IS COUNTABLE

a)

RANDOM VARIABLE

b)

DISCRETE RANDOM VARIABLE

c)

CONTINUOUS RANDOM VARIABLE

d)

SAMPLE SPACE

3.

THIS IS REPRESENTED BY MEASURED DATA, SUCH AS HEIGHTS, WEIGHTS AND TEMPERATURE.

a)

RANDOM VARIABLE

b)

DISCRETE RANDOM VARIABLE

c)

CONTINUOUS RANDOM VARIABLE

d)

SAMPLE SPACE

4.

THIS IS A LIST OF ALL POSSIBLE OUTCOMES.

a)

RANDOM VARIABLE

b)

DISCRETE RANDOM VARIABLE

c)

CONTINUOUS RANDOM VARIABLE

d)

SAMPLE SPACE

5.

SUPPOSE THREE COINS ARE TOSSED. LET Y BE THE RANDOM VARIABLE REPRESENTING THE NUMBER OF TAILS THAT OCCUR. FIND THE VALUES OF THE RANDOM VARIABLE Y.

a)

0,

b)

0,1,

c)

0,1,2

d)

0,1,2,3

6.

THE NUMBER OF DEFECTIVE COMPUTERS PRODUCED BY A MANUFACTURER.

a)

DISCRETE

b)

CONTINUOUS

7.

THE WEIGHT OF NEWBORNS EACH YEAR IN A HOSPITAL.

a)

DISCRETE

b)

CONTINUOUS

8.

THE NUMBER OF SIBLINGS IN A FAMILY OF A REGION.

a)

DISCRETE

b)

CONTINUOUS

9.

Two balls are drawn in succession without replacement from an urn containing 5 red

balls and 6 blue balls. Let Z be the random variable representing the number of blue balls. If you are going to construct a probability distribution table, what are the probabilities?

a)

1/8 , 1/2 , 1/8

b)

1/4 , 1/2 , 1/4

c)

1/2 , 1/4 , 1/2

d)

1 , 1/2 ,1

10.

BONUS QUESTION: WHAT IS MY COMPLETE FIRST NAME?

a)

JOSEPH

b)

JOSEPH ROMAR

c)

JOSEPH ROMAR DWAYNE

d)

JOSEPH ROMAR DUANE