Statistics and Probability Examination
Quiz by EDMAR JOSEPH FLORES
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- Q1
Which of the following is NOT a discrete variable?
The number of arrivals customers in the restaurants between 7:00 a. m to
5:00 p.m.
Number of white marbles in the box
Number of studentspresent in the classroom
The weight of a box of soft drinks labeled “8 ounces.”
30sM11/12SP-IIIa-1 - Q2
Which of thefollowing is an example of discrete variable?
Distance travelled between tricycles
Number of red marbles in the basket
Weight of student
Height of the students in a certain class
30sM11/12SP-IIIa-1 - Q3
A variable that canbe discrete or continuous is called
Random sample
Random variable
Random elimination
Random notation
30sM11/12SP-IIIa-2 - Q4
Which of the following is a variable whose value is obtained by measuring?
Interval
Nominal
Continuous
Discrete
30sM11/12SP-IIIa-2 - Q5
A variable where the information or data can take infinitely many values is
Nominal
Interval
Discrete
Continuous
30sM11/12SP-IIIa-2 - Q6
This term can best describe a variable that can be counted
Discrete
Continuous
Interval
Ratio
30sM11/12SP-IIIa-2 - Q7
A set of numerical values assigned to a sample space is called
Random variable
Random sample
None of the above
Random experiment
30sM11/12SP-IIIa-3 - Q8
A variable whose value could be a finite and countable number is a
Qualitative variable
Discrete variable
Continuous variable
Poison variable
30sM11/12SP-IIIa-2 - Q9
Which of the following statement describe a continuous random variable?
The number ofstudents present in a Class Anthurium
The number of girlstaller than 5 feet in a random sample of 10 girls
The average distance traveled by a jeep in a week
The number of motorcycle owned by a randomly selected household
30sM11/12SP-IIIa-4 - Q10
Which of the following is a discrete random variable?
Jerwin is 165 cm tall
Jerwin weighs 68 kilograms
Jerwin has three sisters
Jerwin ran 500 meters in two minutes
30sM11/12SP-IIIa-4 - Q11
Which of thefollowing is NOT a true statement?
The sum of all the probabilities in a probability distribution is
always equal to one.
The value of a random variable could be zero.
Random variables canonly have one value.
The probability of all the value of a random variable could be zero.
30sM11/12SP-IIIa-4 - Q12
If a coin is tossed, what are the possible values of the random variable for the number of heads?
0, 1, 2, 3
1, 2, 3
0, 1
0, 1, 2
30sM11/12SP-IIIa-3 - Q13
Suppose you tossed two coins. What are the sample spaces for the experiment above?
HH, HT, TT, TH
HH, TH, TT
HH, HT, TT
HH, TT
30sM11/12SP-IIIa-6 - Q14
Suppose you tossed two coins. How many possible outcomes will occur from the experiment?
5
2
4
3
30sM11/12SP-IIIa-6 - Q15
What are the possible values of the random variable for the number of heads when you tossed two coins?
0, 1, 4
0, 1, 2
0, 2, 4
0, 1, 3
30sM11/12SP-IIIa-6