anonymous
  • anonymous
The time required to finish a test is normally distributed with a mean of 60 minutes and a standard deviation of 10 minutes. What is the probability that a student will finish the test in less than 70 minutes?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
do you know what z test is ?
anonymous
  • anonymous
@rvc Do you know how to do this?
rvc
  • rvc
ah i knew this but now i forgot lol sorry :(

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anonymous
  • anonymous
it might take 10 more mins for a student cause they could be the last one done , or they could have been late ...the reason why a student might take 70 mins cause they are focused or they may have problems it depends ...i just gave u a reasonable answer
MrNood
  • MrNood
@Ddaddysgirl13 I think you have missed the point that his is a numeric question with a numeric answer @Upinlamecity Do oyu know the 68,95,97.5 rule? What proportion of the |dw:1435322319275:dw|normal distribution curve lies between the mean and +1SD?

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