Standard Normal Distribution. In Exercises 17-36, assume that a randomly selected
subject is given a bone density test. Those test scores are normally distributed with a mean
of 0 and a standard deviation of 1. In each case, draw a graph, then find the probability of
the given bone density test scores. If using technology instead of Table A-2, round answers
to four decimal places.
17. Less than $-1.23$
19. Less than $1.28$
21. Greater than $0.25$
23. Greater than $-2.00$
25. Between $2.00$ and $3.00$
27. Between and $-2.55$ and $-2.00$
