Q.1
Two important methods in analysis is differentiation and __________ transformation.
  • a) Bernoulli
  • b) Fourier
  • c) Bohr
  • d) Rutherford
Q.2
Every ________ function has a probability distribution function.
  • a) Continuous
  • b) Discrete
  • c) Categorical
  • d) Random
Q.3
Which package resorts to numerical methods when it encounters a model it does not recognize.
  • a) destrEx
  • b) ditrEx
  • c) distrEx
  • d) Exdistr
Q.4
When µ = ___ and σ = ___ we say that the random variable has a standard normal distribution.
  • a) 0,1
  • b) 0,0
  • c) 1,0
  • d) 1,1
Q.5
Which of the following is the symbol of standard normal PDF?
  • a) φ
  • b) #
  • c) &
  • d) *
Q.6
The __________ package has functionality to investigate transformations of univariate distributions.
  • a) Distri
  • b) Dirtr
  • c) Distr
  • d) Hyperbolic
Q.7
Which distribution looks like a norm distribution but with very heavy tails?
  • a) Simple
  • b) Discrete
  • c) Continuous
  • d) Cauchy
Q.8
The ________ is represented by the location parameter.
  • a) Median
  • b) Mode
  • c) Mean
  • d) Variance
Q.9
The ______ parameter influences the spread of the distribution about its median.
  • a) Scale
  • b) Mode
  • c) Mean
  • d) Variance
Q.10
Which distribution comes up a lot in Bayesian statistics because it is a good model for one’s prior beliefs about a population proportion?
  • a) Bohr
  • b) Discrete
  • c) Alpha
  • d) Beta
Q.11
The associated R function is dlogis (x, location =scale =is for _________ distribution.
  • a) Logistic
  • b) Linear
  • c) Discrete
  • d) Beta
Q.12
The _________ distribution comes up in differential equations as a model for population growth under certain assumptions.
  • a) Logistic
  • b) Linear
  • c) Discrete
  • d) Beta
Q.13
Which of the following is a distribution derived from the normal distribution?
  • a) Logistic
  • b) Lognormal
  • c) Normal
  • d) Simple
Q.14
The associated R function is dlnorm(x, meanlog =sdlog =is for ________ distribution.
  • a) Logistic
  • b) Lognormal
  • c) Normal
  • d) Simple
Q.15
The associated R function is dweibull(x, shape, scale =is for _________ distribution.
  • a) Logistic
  • b) Lognormal
  • c) Weibull
  • d) Simple
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