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Question 21 (1 point) Every day, Steve drives from his home in Oakville to a public parking in Toronto and then walks to his office. His drive time is normally distributed with mean and standard deviation values 35.3 and 5.5 minutes, respectively. The walking time is also normally distributed with mean and standard deviation values 11.1 and 2.0 minutes, respectively. What is the standard deviation of his total travel time from home to office in minutes? Note: 1- Round any intermediate numbers to 2 decimal places. 2- Round your final answer to 1 decimal place. Enter your final answer with 1 decimal place. 2- Do not use any words like "minute", "min", etc. in your answer. Only enter the number. Your