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Nifer Disgwyliedig TGAU (+ datrys problem)

Authored by T Wood

Mathematics

9th - 12th Grade

Used 6+ times

Nifer Disgwyliedig TGAU (+ datrys problem)
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40 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

Mae ceiniog yn cael ei daflu 100 gwaith.

Sawl gwaith fyddech chi'n disgwyl cael pen (heads)?

25

50

75

100

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Beth yw'r fformiwla ar gyfer nifer disgwyliedig?

Tebygolrwydd x nifer o dreialon

Tebygolrwydd ÷ nifer o dreialon

Nifer o dreialon ÷ tebygolrwydd

1 - tebygolrwydd

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

Os rydych chi'n taflu dis teg 180 gwaith, sawl gwaith byddech chi'n disgwyl cael 5?

30

20

25

50

45

Answer explanation

Tebygolrwydd o gael 5 yw 1/6

1/6 o 180 = 30

4.

FILL IN THE BLANK QUESTION

2 mins • 1 pt

5.

FILL IN THE BLANK QUESTION

2 mins • 1 pt

Media Image

Os rydych chi'n dewis pêl ar hap o'r jar yma (a rhoi e'n ôl) 200 gwaith, sawl gwaith byddech chi'n disgwyl dewis pêl goch?

6.

FILL IN THE BLANK QUESTION

2 mins • 1 pt

Media Image

Os ydw i'n dewis rhan o'r troellwr yma ar hap 60 gwaith, sawl gwaith dylwn i ddisgwyl cael '3'?

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

Mae ceiniog yn cael ei daflu 100 gwaith.

Y nifer disgwyliedig o ganlyniadau pen (heads) yw 50. Ydy hyn yn golygu bydd yna union 50 pen pob tro?

Ydy

Nac ydy

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