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Submit test The ability to determine the age of some individuals can be difficult if there are not quality government records of birth. Bone growth takes place at the growth plates at the end of long bones Once all growth plates fuse, growth stops, and an individual is considered a biological adult. The age at which growth plates fuse for males is approximately normally distributed with a mear of 18.5 years and a standard deviation of 15.8 months. Complete parts (a) through (d) below. Click here to view the standard normal distribution table (page 1). Click here to view the standard normal distribution table (page 2)_ (a) What is the probability a male's growth plates fuse after age 21? The probability a male's growth plates fuse after age 21 is (Round to four decimal places as needed.) (b) What is the probability a male's growth plates fuse before age 17? The probability a male's growth plates fuse before age 17 is (Round to four decimal places as needed.) (c) What proportion of male growth plates fuse between 15 and 17 years of age? The proportion of male growth plates that fuse between 15 and 17 years of age is Time Remaining: 00-46 43