Answer :
The answer explains the probability of rose stem lengths, including being shorter or longer than certain lengths, determining maximum length for corsages, and interpreting z-scores.
A) To find the probability that a rose stem will be shorter than 16.6 inches, we calculate the z-score and use the standard normal distribution table.
B) For the probability of a rose being a 'long stem rose' (>21.7 inches), we find the z-score and use the standard normal distribution table.
C) To determine the maximum stem length for corsages, we find the z-score corresponding to the 8th percentile.
D) A z-score of 0.64 means the rose stem length is 0.64 standard deviations above the mean.