True or false, and why?
1) Let the random variable X be the number of customers in a store in a given day, then the probability distribution of X can be described by a density function.
2) Let X be the increase in price of (a share of) IBM stock in a given day, then X is a continuous random variable.
Thanks
1) Let the random variable X be the number of customers in a store in a given day, then the probability distribution of X can be described by a density function.
2) Let X be the increase in price of (a share of) IBM stock in a given day, then X is a continuous random variable.
Thanks
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1) FALSE, a discrete variable has a probability mass function
2) FALSE, strictly speaking, it is a discrete random variable in cents
2) FALSE, strictly speaking, it is a discrete random variable in cents