A-Level
EDEXCEL
Mathematics & Further Mathematics
May 2018
QP-201805-Mathematics-US1 · Question 6
Question (excerpt):
22 6. The waiting time, L minutes, to see a doctor at a health centre is normally distributed with L a1 ȝ, ı2). Given that P(L 15) 0.9 and P(L 5) 0.05 (a) find the value of μ and the value of ı. (…
22 6. The waiting time, L minutes, to see a doctor at a health centre is normally distributed with L a1 ȝ, ı2). Given that P(L 15) 0.9 and P(L 5) 0.05 (a) find the value of μ and the value of ı. (…
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