
Probabilità e calcolo combinatorio
Authored by Andrea Gabrielli
Mathematics
9th - 12th Grade
Used 97+ times

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20 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Una urna contiene 7 palline nere, 3 bianche, 4 rosse. Estraendo a caso una pallina, qual'è la probabilità che sia rossa o bianca?
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Una urna contiene 7 palline nere, 3 bianche, 4 rosse. Estraendo a caso due palline senza reimmisione, qual'è la probabilità che siano dello stesso colore?
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Calcolare la probabilità che esca una sola testa lanciando due volte una moneta.
1/2
1/3
1/4
1/8
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Il 35% della popolazione ha gli occhi azzurri. Se una persona è scelta a caso, qual è la probabilità che non abbia gli occhi azzurri?
0.65
0.35
0.5
0.33
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Calcola la probabilità di estrarre in successione due numeri dispari da un 'urna contenente 5 palline numerate da 1 a 5 ne senza reimmisione nell'urna della prima pallina.
3/10
5/6
9/25
1/3
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Da un mazzo di 40 carte calcola la probabilità che:
esca una figura sapendo che è uscita una carta rossa
5/10
3/10
2/5
3/11
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Qual è la probabilità che esca sette come somma dei punteggi del lancio di due dadi?
5/36
1/6
1/9
1/12
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