
Dosraniad Normal (Unochrog)
Authored by T Wood
Mathematics
6th - 8th Grade

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100 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mae X yn hapnewidyn sy'n dilyn y dosraniad normal gyda chymedr o 87 a gwyriad safonol o 11.6. Beth yw'r tebygolrwydd bydd X yn cymryd gwerth sy'n llai na 97.1?
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mae X yn hapnewidyn sy'n dilyn y dosraniad normal gyda chymedr o 85 a gwyriad safonol o 25.5. Beth yw'r tebygolrwydd bydd X yn cymryd gwerth sy'n llai na 47?
7.0%
6.8%
7.1%
6.5%
7.9%
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mae X yn hapnewidyn sy'n dilyn y dosraniad normal gyda chymedr o 96 a gwyriad safonol o 35. Beth yw'r tebygolrwydd bydd X yn cymryd gwerth sy'n llai na 75?
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mae X yn hapnewidyn sy'n dilyn y dosraniad normal gyda chymedr o 91 a gwyriad safonol o 33. Beth yw'r tebygolrwydd bydd X yn cymryd gwerth sy'n llai na 76.2?
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mae X yn hapnewidyn sy'n dilyn y dosraniad normal gyda chymedr o 49 a gwyriad safonol o 15. Beth yw'r tebygolrwydd bydd X yn cymryd gwerth sy'n llai na 59?
71.9%
77.1%
77.5%
76.5%
74.8%
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mae X yn hapnewidyn sy'n dilyn y dosraniad normal gyda chymedr o 95 a gwyriad safonol o 32. Beth yw'r tebygolrwydd bydd X yn cymryd gwerth sy'n fwy na 68?
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mae X yn hapnewidyn sy'n dilyn y dosraniad normal gyda chymedr o 32 a gwyriad safonol o 5.3. Beth yw'r tebygolrwydd bydd X yn cymryd gwerth sy'n fwy na 35?
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