Description Usage Arguments Value Author(s) Examples
Shades desired areas under a specified normal curve, returns numerical value of the area.
1 |
bound |
A numerical vector of length 1 or 2, indicating the boundary (respectively, boundaries) of shaded region on the bhorizontal axis |
region |
A character string. Default is "below". Possible values are "between" (when boundary consists of two numbers), "below", "above", and "outside" (again when boundary consists of two numbers) |
mean |
Mean of the distribution |
sd |
Standard deviation of the distribution |
graph |
Will produce graph of the probability |
Numerical value of area under curve over region.
Homer White hwhite0@georgetowncollege.edu
1 2 3 4 5 6 7 8 9 10 11 | #This gives P(X < 75) for X normal with mean=70 and sd=4:
pnormGC(75,region="below",mean=70,sd=4)
#This gives P(X > 71) for X normal with mean=70 and sd=4:
pnormGC(71,region="above",mean=70,sd=4)
#This gives P(-1 < X < 1), for standard normal X:
pnormGC(c(-1,1),region="between")
#This gives P(X < 68 or X > 71), for X normal with mean =70 and sd=4:
pnormGC(c(68,71),region="outside",mean=70,sd=4)
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