alle Ages of Passenger Cars the average age of passenger train cars is 194 years. If the distribution of ages is normal
Posted: Wed May 11, 2022 5:12 pm
alle Ages of Passenger Cars the average age of passenger train cars is 194 years. If the distribution of ages is normal and 22% or the cars are older than 23.3 years, find the standard deviation. Round z-value calculations to 2 decimal places and final answer to 2 decimal places The standard deviation must be years.