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Download this complete,fully solved and updated actual exam for GRE Math Subject|GUARANTEED SUCCESS
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  • GRE PSYCHOLOGY
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  • Oxford University (OX)

Probability to be within 1, 2, 3 standard deviations of the mean 68, 95, 99.7 Integral of normal distribution from -infinity to 0 0.5 Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:00 / 0:15 Full screen Brainpower Read More Integral of normal dis...

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  • July 13, 2024
  • 18
  • 2023/2024
  • Exam (elaborations)
  • Questions & answers

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  • gre math subject
  • gre

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  • Oxford University (OX)
  • Unknown
  • GRE PSYCHOLOGY
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complete,fully
solved and
updated actual
exam for GRE
Math Subject
Probability to be within 1, 2, 3 standard
deviations of the mean - answer 68, 95, 99.7


Integral of normal distribution from -infinity to
0 - answer 0.5


Integral of normal distribution from -infinity to
0.5 - answer .69

,Integral of normal distribution from -infinity to
1 - answer .84


Integral of normal distribution from -infinity to
1.5 - answer .93


Integral of normal distribution from -infinity to
2 - answer .97


Integral of normal distribution from -infinity to
2.5 - answer .99


Integral of normal distribution from -infinity to
>3 - answer 1


Normal distribution form - answer 1/sigma \
sqrt{2\pi} e^{-(x-\mu)^2/2\sigma^2}


Definition of expectation value for continuous
random variable with density function f -
answer E(X) = \int_-\infty^\infty t f(t) dt

, Definition of variance for continuous random
variable with density function f (2 answers) -
answer \int_-\infty^\infty (t-\mu)^2 f(t)dt
E(X^2) - E(X)^2


Definition of standard deviation - answer
sqrt{variance} = sqrt{E(X^2)-E(X)^2}


P(A or B) - answer P(A) + P(B) - P(A and B)


Events A and B are independent - answer P(A
and B) = P(A) x P(B)


Events A and B are mutually exclusive -
answer P(A and B) = 0, equiv. P(A or B) =
P(A) + P(B)


sin(2x) - answer 2sin(x)cos(x)

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