
Elemente de probabilități și statistică. Clasa 8
Authored by Carolina Caragia
Mathematics
8th Grade
Used 30+ times

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15 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Literele cuvântului „Paralelogram” sunt aruncate într-o cutie. Se extrage la întâmplare o literă. Aflați probabilitatea de a scoate litera a ?
0,25
0,375
1
0
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Literele cuvântului „Paralelogram” sunt aruncate într-o cutie. Se extrage la întâmplare o literă. Aflați probabilitatea de a scoate o consoană ?
0,58(3)
0,5
1
0
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Într-o urnă sunt 5 bile albe, 4 bile negre, 6 bile roșii. Se extrage o bilă la întâmplare. Aflați probabilitatea ca bila extrasă să fie albă?
1/3
5/9
1
0
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
2013
2015
2011
2012
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Câți elevi sunt în clasă și câți elevi au scris pe nota 8 ?
30 elevi / 5 elevi
25 elevi / 7 elevi
35 elevi / 6 elevi
28 elevi / 4 elevi
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Numărul elevilor din club, care au vârsta 7 ani?
200
120
80
0
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Se ia la întâmplare un număr din mulțimea A={- ; 2; 1,5; -7; ; }. Care este probabilitatea ca acest număr să fie natural?
0,3
1
0
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