QUIZ # 1 - RANDOM VARIABLE
Quiz by Louise Lyn Angeles
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- Q1
Classify the following random variable:
X: The amount of milk obtained from a cow.
Discrete
Continuous
30sM11/12SP-IIIa-1 - Q2
Classify the following random variable:
Z: Number of men among 50 newly hired doctors
Discrete
Continuous
30sM11/12SP-IIIa-1 - Q3
Classify the following random variable:
A: Amount of rainfall (in mm) in the different cities in Metro Manila
Discrete
Continuous
120sM11/12SP-IIIa-1 - Q4
It is a table showing all the possible values of a discrete random variable together with their corresponding probabilities. (Input your answers in ALL CAPITAL LETTERS)
Users enter free textType an Answer30s - Q5
The table below shows a Discrete Probability Distribution.
falsetrueTrue or False30s - Q6
The table below shows a Discrete Probability Distribution.
truefalseTrue or False30s - Q7
If two coins are tossed, which is NOT a possible value of the random variable for the number of heads?
3
1
2
0
30s - Q8
Which of the following variables can assume only a finite number of values and can be determined by simply counting?
Discrete Random Variable
Continuous Random Variable
Discrete Probability Distribution
Continuous Probability Distribution
30s - Q9
Determine the mean of the following Random Variable.
1.37
1.83
1.75
1.50
30s - Q10
In a valid probability distribution, the probabilities must:
Be between 0 and 1 and the sum of the probabilities is 1.
Be between 0 and 1 and the sum of the probabilities is less than 1
Be between 0 and 1 and the sum of the probabilities is a positive number.
Be between 0 and 1 and the sum of the probabilities is greater than 1
30s - Q11
What is the sample space if two coins are tossed?
{HH, HT, TH, TT}
{H, T}
{HHH, TTT, HHT, HTH, HTT, THH, THT, TTH}
{HH, TT}
30s - Q12
What is the term used for the set of all possible outcomes in an experiment?
Statistics and Probability
Discrete Data
Sample Space
Random Variable
30s - Q13
Determine the mean of the following Random Variable.
Users enter free textType an Answer30s - Q14
Determine the mean of the following Random Variable.
Users enter free textType an Answer30s - Q15
Determine the Variance of the following Random Variable.
Users enter free textType an Answer30s
