Paper 6 October/November 2009 MATHEMATICS (9709/61) A Levels
CIE
AS & A Level
Mathematics (9709)
بهمن
2009
شامل مباحث:
Paper 5: Probability & Statistics 1
تعداد سوالات: 6
سطح دشواری:
متوسط
شروع:
آزاد
پایان:
آزاد
مدت پاسخگویی:
50 دقیقه
رایگان
لطفا برای اطمینان از عملکرد و تجربه بهتر از مرورگرهای مدرن و به روز مانند کروم یا فایرفاکس استفاده کنید.
پیش نمایش صفحه اول فایل
Danial Naderi It was found that 68% of the passengers on a train used a cell phone during their train journey. Of those using a cell phone, 70% were under 30 years old, 25% were between 30 and 65 years old and the rest were over 65 years old. Of those not using a cell phone, 26% were under 30 years old and 64% were over 65 years old.
a) Draw a tree diagram to represent this information, giving all probabilities as decimals.
b) Given that one of the passengers is…
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