DATABASE FUNDAMENTALS
TYPES OF DATA
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Continuous
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Discrete
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Either A or B
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None of the above
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Detailed explanation-1: -The time it takes for a student to drive to school can take any value from x to y mins. It can be 10, 13.27, or 45.298 minutes, for example. Thus the variable is a continuous one.
Detailed explanation-2: -Time is a continuous variable. You could turn age into a discrete variable and then you could count it. For example: A person’s age in years.
Detailed explanation-3: -Time is a continuous quantity. A person could drive for 10 minutes, or 10 minutes 30 seconds, or 10 minutes 10.23 seconds, etc. While drive times are often reported (or measured) in discrete units-for example, rounding to the nearest minute or second-the underlying random variable should be modeled as continuous.
Detailed explanation-4: -Yes, speed is a common continuous variable, and the value is chosen by a random process. We know it is continuous because there is always another possible value between any two speed values. It would not be possible to count all of the possible speeds that could be.