Probabilities

Probabilities
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WiskundeMiddelbare schoolhavoLeerjaar 3

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Probabilities
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Slide 1 - Diapositive


31127=
A
1211
B
158
C
367
D
14411

Slide 2 - Quiz

What percentage corresponds to the fraction?
51
A
2%
B
5%
C
20%
D
25%

Slide 3 - Quiz

What fraction corresponds to a probability of 0,4?
A
52
B
104
C
401
D
1004

Slide 4 - Quiz

Today
  • Start (5 min)
  • New subject (15 min)
  • Bettermarks (20 min)
  • Exercise together (10 min)
  • Bettermarks (25 min)
  • End lesson (5 min)

Slide 5 - Diapositive

Note 14.2 Probabilities
The probability you roll 2 with a dice =
Notation: P(2) = 
61
61
timer
2:00

Slide 6 - Diapositive

Probability trees
A basket contains 7 purple marbles and 3 yellow ones. Micha picks one marble from the basket and puts it back afterwards. Calculate the probability of picking two marbles of the same colour.

Slide 7 - Diapositive

Probability trees
A basket contains 7 purple marbles and 3 yellow ones. Micha picks one marble from the basket and puts it back afterwards. Calculate the probability of picking two marbles of the same colour.

Slide 8 - Diapositive

Probability trees
A basket contains 7 purple marbles and 3 yellow ones. Micha picks one marble from the basket and puts it back afterwards. Calculate the probability of picking two marbles of the same colour.

Slide 9 - Diapositive

Probability trees
A basket contains 7 purple marbles and 3 yellow ones. Micha picks one marble from the basket and puts it back afterwards. Calculate the probability of picking two marbles of the same colour.

Slide 10 - Diapositive

Probability trees
A basket contains 7 purple marbles and 3 yellow ones. Micha picks one marble from the basket and puts it back afterwards. Calculate the probability of picking two marbles of the same colour.

Slide 11 - Diapositive

Probability trees
A basket contains 7 purple marbles and 3 yellow ones. Micha picks one marble from the basket and puts it back afterwards. Calculate the probability of picking two marbles of the same colour.

Slide 12 - Diapositive

Probability trees
A basket contains 7 purple marbles and 3 yellow ones. Micha picks one marble from the basket and puts it back afterwards. Calculate the probability of picking two marbles of the same colour.

Slide 13 - Diapositive

Probability trees
A basket contains 7 purple marbles and 3 yellow ones. Micha picks one marble from the basket and puts it back afterwards. Calculate the probability of picking two marbles of the same colour.
P(G,G)=103103=1009

Slide 14 - Diapositive

Probability trees
A basket contains 7 purple marbles and 3 yellow ones. Micha picks one marble from the basket and puts it back afterwards. Calculate the probability of picking two marbles of the same colour.
P(G,G)=103103=1009
P(G,P)=103107=10021

Slide 15 - Diapositive

Probability trees
A basket contains 7 purple marbles and 3 yellow ones. Micha picks one marble from the basket and puts it back afterwards. Calculate the probability of picking two marbles of the same colour.
P(G,G)=103103=1009
P(G,P)=103107=10021
P(P,G)=107103=10021
P(P,P)=107107=10049

Slide 16 - Diapositive

Note 14.2: Probability trees
A basket contains 7 purple marbles and 3 yellow ones. Micha picks one marble from the basket and puts it back afterwards. Calculate the probability of picking two marbles of the same colour.
P(G,G)=103103=1009
P(G,P)=103107=10021
P(P,G)=107103=10021
P(P,P)=107107=10049
timer
5:00

Slide 17 - Diapositive

Note 14.2: Probability trees
The probability of picking the same coulour is:

P(G,G)=103103=1009
P(G,P)=103107=10021
P(P,G)=107103=10021
P(P,P)=107107=10049
P(G,G)+P(P,P)=1009+10049=10058=5029

Slide 18 - Diapositive

Bettermarks
  • Bettermarks 14.2 part 1
  • Until 10:45
  • Raise your finger if you have any questions
  • Finished? 14.2 part 2

Slide 19 - Diapositive

Slide 20 - Diapositive

Slide 21 - Diapositive

Slide 22 - Diapositive

What is the percentage of blue markers?

Slide 23 - Diapositive

Bettermarks
  • Bettermarks 14.2 part 1 and 14.2 part 2
  • Until the end of the lesson
  • Raise your finger if you have any questions or if you're finished

Slide 24 - Diapositive