If bolt thread length is normally distributed, what is the probability that the thread length of a randomly selected bolt is (a) Within 0.5 SDs of its mean value? (Round your answer to four decimal places.) (b) Farther than 1.9 SDs from its mean value? (Round your answer to four decimal places.) (c) Between 1 and 2 SDs from its mean value? (Round your answer to four decimal places.)

If bolt thread length is normally distributed, what is the probability that the thread length of a randomly selected bolt is I USE SALT (a) Within 0.5 SDs of its mean value? (Round your answer to four decimal places.) S (b) Farther than 1.9 SDs from its mean value? (Round your answer to four decimal places.) S (c) Between 1 and 2 SDs from its mean value? (Round your answer to four decimal places.) Z You may need to use the appropriate table in the Appendix of Tables to answer this