A normal distribution
a. has more than half of its data points to the left of the median.
b. has more than half of its data points to the right of the mean.
c. has 95 of its data points within one standard deviation of the mean.
d. is symmetrical.
Question 2
For a normal distribution
a. all of the data points lie within one standard deviation from the mean.
b. about 2/3 of the distribution lies within one standard deviation from the mean.
c. about 95 of the distribution lies within two standard deviations from the mean.
d. both b and c
The small-scale distribution of different tree species in a Douglas-fir forest is determined by both
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