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#1 2007-09-14 00:20:30
- teo
- Member
- Registered: 2007-08-04
- Posts: 7
statistics: binomial
it is claimed that 90% of the children who were given flu jabs do not catch flu in the next six months following the jab. it is assumed that children catch flu independently of each other.
find the least interger r such that the probability of less than r children catching flu within the next 6 months is more than 3%.
ans: 9
to take the first step is easy, to climb up the mountain is another matter.
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#2 2007-09-14 01:01:30
- krassi_holmz
- Real Member
- Registered: 2005-12-02
- Posts: 1,905
Re: statistics: binomial
Are these r children given flu jabs?
IPBLE: Increasing Performance By Lowering Expectations.
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#3 2007-09-14 01:03:13
- mathsyperson
- Moderator
- Registered: 2005-06-22
- Posts: 4,900
Re: statistics: binomial
How many children are there in total?
Why did the vector cross the road?
It wanted to be normal.
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#4 2007-09-14 13:01:33
- teo
- Member
- Registered: 2007-08-04
- Posts: 7
Re: statistics: binomial
the flu jab is given to 150 children in total.
to take the first step is easy, to climb up the mountain is another matter.
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