Activités mentales

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Activités mentales

Stéphane Mirbel

Vous disposez de 45 secondes pour répondre aux questions

Stéphane Mirbel Activités mentales

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t Question 1

simplifier : 1−

n n+1

(3)

t Question 1

simplifier : 1−

n n+1

(4)

t Question 1

simplifier : 1−

n n+1

(5)

t Question 1

simplifier : 1−

n n+1

(6)

t Question 1

simplifier : 1−

n n+1

(7)

t Question 1

simplifier : 1−

n n+1

(8)

t Question 1

simplifier : 1−

n n+1

(9)

t Question 1

simplifier : 1−

n n+1

(10)

t Question 1

simplifier : 1−

n n+1

(11)

t Question 2

simplifier : u_n=

3n+1 2n

n 2n

(12)

t Question 2

simplifier : u_n=

3n+1 2n

n 2n

(13)

t Question 2

simplifier : u_n=

3n+1 2n

n 2n

(14)

t Question 2

simplifier : u_n=

3n+1 2n

n 2n

(15)

t Question 2

simplifier : u_n=

3n+1 2n

n 2n

(16)

t Question 2

simplifier : u_n=

3n+1 2n

n 2n

(17)

t Question 2

simplifier : u_n=

3n+1 2n

n 2n

(18)

t Question 2

simplifier : u_n=

3n+1 2n

n 2n

(19)

t Question 2

simplifier : u_n=

3n+1 2n

n 2n

(20)

t Question 3

On donne le tableau des effectifs liés à deux événements^A et ^B.

A A Total

B 10 50

B 20 40 Total

Donner le calcul de P(A∩B) et^PA(B).

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t Question 3

A A Total

B 10 50

B 20 40 Total

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t Question 3

A A Total

B 10 50

B 20 40 Total

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t Question 3

A A Total

B 10 50

B 20 40 Total

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t Question 3

A A Total

B 10 50

B 20 40 Total

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t Question 3

A A Total

B 10 50

B 20 40 Total

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t Question 3

A A Total

B 10 50

B 20 40 Total

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t Question 3

A A Total

B 10 50

B 20 40 Total

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t Question 3

A A Total

B 10 50

B 20 40 Total

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t Question 4

Ω

A

B

B 0, 1 0, 6

A

0, 8 B

B Donner le calcul de P(A∩B).

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t Question 4

Ω

A

B

B 0, 1 0, 6

A

0, 8 B

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t Question 4

Ω

A

B

B 0, 1 0, 6

A

0, 8 B

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t Question 4

Ω

A

B

B 0, 1 0, 6

A

0, 8 B

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t Question 4

Ω

A

B

B 0, 1 0, 6

A

0, 8 B

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t Question 4

Ω

A

B

B 0, 1 0, 6

A

0, 8 B

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t Question 4

Ω

A

B

B 0, 1 0, 6

A

0, 8 B

(36)

t Question 4

Ω

A

B

B 0, 1 0, 6

A

0, 8 B

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t Question 4

Ω

A

B

B 0, 1 0, 6

A

0, 8 B

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t Question 5

Ω

A

B

B 0, 1 0, 6

A

0, 8 B

B Donner le calcul de P(B).

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t Question 5

Ω

A

B

B 0, 1 0, 6

A

0, 8 B

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t Question 5

Ω

A

B

B 0, 1 0, 6

A

0, 8 B

(41)

t Question 5

Ω

A

B

B 0, 1 0, 6

A

0, 8 B

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t Question 5

Ω

A

B

B 0, 1 0, 6

A

0, 8 B

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t Question 5

Ω

A

B

B 0, 1 0, 6

A

0, 8 B

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t Question 5

Ω

A

B

B 0, 1 0, 6

A

0, 8 B

(45)

t Question 5

Ω

A

B

B 0, 1 0, 6

A

0, 8 B

(46)

t Question 5

Ω

A

B

B 0, 1 0, 6

A

0, 8 B

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Correction

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t Correction question 1

1− n

n+1

=

n+1−n n+1

= 1 n+1

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t Correction question 2

u_n= 3n+1

2n n 2n

= 3n+1

n =3+ 1 n

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t Correction question 3

A A Total

B 10 40 50 B 20 40 60 Total 30 80 110 P(A∩B)=

10 110=

1

11 et^PA(B)= 10 30=

1 3.

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t Correction question 4

Ω

A

0,4 B

B 0, 1 0, 6

A

0, 8 B

B

Donner le calcul deP(A∩B)=0, 1×0, 4=0, 04.

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t Correction question 5

Ω

A

0,4 B

B 0, 1 0, 6

A

0, 8 B

B 0,9

P(B)=0, 1×0, 4+0, 9×0, 8=0, 04+0, 72=0, 76.

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Fin