Question
The patient recovery time from a particular surgical procedure is normally distributed with a mean of 5.5 days and a standard deviation of 1.7 days.
The patient recovery time from a particular surgical procedure is normally distributed with a mean of 5.5 days and a standard deviation of 1.7 days.
(a) What is the median recovery time?
5.5 | ||
1.7 | ||
2.8 | ||
7.2 |
(b) What is the modalrecovery time?
7.2 | ||
5.5 | ||
2.8 | ||
1.7 |
(c) What is the z-score for a patient who takes ten days to recover?
0.4 | ||
2.6 | ||
1.5 | ||
9.1 |
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Cambridge IGCSE And O Level Additional Mathematics
Authors: Val Hanrahan, Jeanette Powell
1st Edition
1510421645, 978-1510421646
