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Q 1/40
Score 0
Classify each variable as discrete or continuous. Number of times you asked questions to your teacher.
30
Continuous
Discrete
Q 2/40
Score 0
Classify each variable as discrete or continuous. Number of ball pens used by the students in the university.
30
Discrete
Continuous
40 questions
Q.
Classify each variable as discrete or continuous. Number of times you asked questions to your teacher.
1
30 sec
Q.
Classify each variable as discrete or continuous. Number of ball pens used by the students in the university.
2
30 sec
Q.
Classify each variable as discrete or continuous. Altitude of the mountain.
3
30 sec
Q.
Classify each variable as discrete or continuous. Dosage of medicine.
4
30 sec
Q.
Classify each variable as discrete or continuous. Thickness of the book.
5
30 sec
Q.
Classify each variable as discrete or continuous. Family size.
6
30 sec
Q.
Classify each variable as discrete or continuous. Body temperature.
7
30 sec
Q.
Classify each variable as discrete or continuous. Number of sons in the family.
8
30 sec
Q.
Classify each variable as discrete or continuous. Frequency of absences in class.
9
30 sec
Q.
Classify each variable as discrete or continuous. Pressure of air inside the tire.
10
30 sec
Q.
What type of variable cannot take the value of a fraction between two consecutive sample points?
11
30 sec
Q.
Which variable can assume an uncountable infinite number of real values?
12
30 sec
Q.
What is the table of values showing the sample points of an experiment and their corresponding probabilities?
13
30 sec
Q.
In a single throw of a pair of coins, what is the probability that only one head will appear?
14
30 sec
Q.
In a single throw of a pair of dice, how many sample point(s) will have a sum of 12?
15
30 sec
Q.
Which graph shows the probability distribution of a random variable where the probabilities (y-axis) of the sample points(x-axis) are represented by vertical bars.
16
30 sec
Q.
Which function assigns a probability value to a discrete random variable and is defined by a discrete probability distribution?
17
30 sec
Q.
Consider the following discrete probability distribution: What is the sample space of the experiment.
18
45 sec
Q.
Consider the following discrete probability distribution: What are the sample points associated to “0.1 ≤ P(x) ≤ 0.3”
19
120 sec
Q.
Consider the following discrete probability distribution: What are the sample points associated to P(X) < 0.2?
20
120 sec
Q.
What is the sum of the probabilities of the discrete random variable?
21
30 sec
Q.
What is the sum of all the probabilities in a continuous variable?
22
30 sec
Q.
The area under the graph of a probability density function is always
23
30 sec
Q.
Consider the discrete probability distribution. What is the P (X≤ 2)?
24
120 sec
Q.
Consider the discrete probability distribution. What is the P (1 < X < 5)?
25
120 sec
Q.
Which of the following is not a probability mass function or probability distribution?
26
120 sec
Q.
What is the weighted average of all the possible values of random variables?
27
30 sec
Q.
What is the degree to which random variables differ from the expected values?
28
30 sec
Q.
The square root of variance is called __________.
29
30 sec
Q.
About 90% of the applicants passes the admission test every year. How many of the 250 applicants are expected to pass the admission test this year?
30
60 sec
Q.
Which of the following is a discrete random variable?
31
30 sec
Q.
If the two coins are tossed, which is not a possible value of the random variable for the number of heads?
32
30 sec
Q.
Which of the following is not a true statement?
33
45 sec
Q.
Which formula gives the probability distribution shown by the table?
34
120 sec
Q.
If P(X) = X/6, what are the possible values of X for it to be a probability distribution?
35
300 sec
Q.
Refer to the probability distribution shown below. What is the mean of the probability distribution?
36
300 sec
Q.
What is the variance of the probability distribution?
37
300 sec
Q.
What is the standard deviation of the probability distribution?
38
300 sec
Q.
What is the mean of the probability distribution?
39
300 sec
Q.
What is the variance of the probability distribution?
