P(z) 0.07 0. 16 0.29 0.24 0.10 5 0.14 1. Find the expected number (mean) of rings during a 12-hour shift per post-op patient. Do not round your answers when completing the table. Rings P(x) Rings x P(z) 0.D7 0.16 0.29 0.24 0. 10 0.14 Place the total of the third column here -> The expected number of rings during a 12-hour shift per post-op patient is rings. This time, use the general rounding rules to round your answer. 2. Find is the variance. Use the unrounded mean from question 1 (the total of the third column). Don't round any of your answers to complete the table. P(=) Rings - mean (Rings- mean)" (Rings- mean)" x P(=) The variance rings. Use the general rounding rules to round your answer- The standard deviation s rings. Use the unrounded variance from question 2 (the total answer of the Last column) to answer the question, Then use the general rounding rules to round your lip