B. If there are 450 students took the examination, mean s 29 and SD is 3.5, how many of them whose score is fro m 25.5

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B. If there are 450 students took the examination, mean i
s 29 and SD is 3.5, how many of them whose score is fro
m 25.5 <x< 40?
II O
Transcribed Image Text:B. If there are 450 students took the examination, mean i s 29 and SD is 3.5, how many of them whose score is fro m 25.5 <x< 40? II O
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