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7 questions
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  • Q1
    1.Which of the following explains why the table below is not a probability distribution? X 2 4 6 8 10 P(X) 0.15 0.15 0.15 0.15 0.15
    The probability cannot assume values that are less than 0
    The random variable must be a real number
    The sum of the probabilities must be equal to 1
    The probability cannot assume values
    30s
    M11/12SP-IIIa-6
  • Q2
    2. One of the three basic interpretations of probability where the probability of an event is determined by carrying out an experiment
    Subjective Probability
    Probability Distribution
    Empirical Probability
    . Classical Probability
    30s
    M11/12SP-IIIa-4
  • Q3
    3. Which of the following is NOT an example of discrete random variable?
    The number of female athletes
    The average amount of electricity consumed per household per month
    The number of defective computers produced by a manufacturer
    The number of dropouts in a school district for a period of 10 years.
    30s
    M11/12SP-IIIa-2
  • Q4
    4. It is a way of presenting probability distribution using vertical bars placed side by side.
    Frequency Polygon
    All of the Above
    Histogram
    Normal Distribution
    30s
    M11/12SP-IIIa-4
  • Q5
    5. Which of the following statements is TRUE?
    The probability of each value in a probability distribution should be more than or equal to one and less than or equal to zero.
    A random variable is discrete if its set of possible outcomes is countable
    Sampling distribution refers to the values of random variables and the probability assigned to them
    Classical probability is based on an educated guess or estimate.
    30s
    M11/12SP-IIIa-2
  • Q6
    6. Which of the following quantities is equal to the expected value of the discrete random variable?
    Mass Function
    Mean
    Variance
    Standard Deviation
    30s
    M11/12SP-IIIb-1
  • Q7
    7. Which of the following is an example of continuous random variable?
    The amount of rainfall in a randomly selected time
    The number of mistakes a student makes in an exam
    The number of left-handed persons in a classroom
    The year of birth of a randomly selected student
    30s
    M11/12SP-IIIa-2

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