SFR Lesson Notes The Winston Churchill School
Ratio  Number
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January 05, 2012
Jean enters an archery competition. If it is raining the probability that she hits the target is 0.4. If it is not raining the probability that she hits the target is 0.7 The probability that it rains on the day of the competition is 0.2 a) Draw a tree diagram showing all the probabilities b) Calculate the probability that Jean hits the target with her first arrow in the competition.
Jan 1716:27
£140 Ann : Ben 2:5
Jan 2617:00
1
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January 05, 2012
55 Ann : Ben 3:8
Jan 2617:00
The angles of a triangle are in the ratio 2:3:4 Calculate the size of each angle
Jan 2617:00
2
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January 05, 2012
Jan 2617:00
Jan 2708:11
3
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January 05, 2012
Jan 2709:00
Jan 2709:01
4
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January 05, 2012
Jan 2709:05
Jan 2709:10
5
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January 05, 2012
Jan 509:29
Jan 507:41
6
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January 05, 2012
Jan 507:55
Make own ratio question
Jan 507:45
7