Question

va rog rapid
explicatie

raspuns
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Answer 1

1. 6 bile albe

12 bile roșii

15 bile albastre

6+12+15=33 (total)

a) bilă roșie

p%=cazuri favorabile/cazuri totale

p%=12/33

p%=0,(36)%

b) bilă albastră

p%=15/33

p%=0,(45)%

2. A={1,2,3,4...15}

1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 (se divid cu 4)

p%=5/15

p%=0,(3)%

3. A={10, 20, 30, 40, 50, 60}

10, 20, 30, 40, 50, 60 (se divid cu 15)

p%=2/6

p%=0,(3)%

4. A={2/3, 1/3, 4/5, 7/4}

2/3, 1/3, 4/5, 7/4 (subunitate)

p%=3/4

p%=0,75%

5. A={x € N / 1<x≤10}

1<x≤10

x€ (1, 10]

A={2, 3, 4, 5, 6, 7, 8, 9, 10}

2, 3, 4, 5, 6, 7, 8, 9, 10 (se divid cu 3)

p%=3/9

p%=0,(3)%