Question

Dau coroana cineva repede 3,4,5,6,7,​

Answer 1

3.

a)galben P=3/5

b) albastru P=2/5

4.

piese bune 40-2=38

P=38/40=19/20

5.

patrate perfecte :1,4,9,16⇒ P=4/20=1/5

numere prime:2,3,5,7,11,13,17,19 ⇒8/20=4/5

1/5 <4/5 deci probabilitatea mai mare e sa extragem numar prim

6.

11 -rosii

7-negre

12-albe

10-galbene

Total bile 40

a) albe P=12/40=3/10

b ) rosii P=11/40

c) neagra sau galbena P=17/40

d) alba sau rosie sau galbena P=33/40

7.

26-coli matematica

15 -coli dictando

30-coli albe

total=71

matematica P= 26/71