Which of the following is true about f(x) when X has a uniform distribution over the interval a, b?
a. The values of f(x) are different for various values of the random variable X.
b. f(x) equals one for each possible value of X.
c. f(x) equals one divided by the length of the interval from a to b.
d. None of these choices.
Question 2
What is the shape of the probability density function for a uniform random variable on the interval a, b?
a. A rectangle whose X values go from a to b.
b. A straight line whose height is 1/(b - a) over the range a, b.
c. A continuous probability density function with the same value of f(x) from a to b.
d. All of these choices are true.
The small-scale distribution of different tree species in a Douglas-fir forest is determined by both
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