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R Questions Set 40:

Quiz Mode

Random variables defined via the distr package.

Distri

Diestr

Distr

Diftr

Solution:

How many main functions does the tidyr package provide for tidying messy data?

Solution:

Which of the following statements is used to explicitly control looping?

while

break

for

Solution:

What will be the output of the code?

> m <- matrix(nrow = 2, ncol = 3) > dim(m)

3 2

2 3

Solution:

Each margin of a figure is considered to have a number of

Test

Text lines

Line segment

Margins

Solution:

Which of the following functions is used to plot multiple histograms?

multi.plot()

multi.hist()

xyploy.multi()

poly()

Solution:

All columns in a matrix must have the same mode and the same length.

Different

Same

May be the same

May be the different

Solution:

Which of the following sorts a data frame by the order of the elements in column B?

x[rev(order(x$B)),]

x[ordersort(x$B),]

x[order(x$B),]

x[rev(x$B),]

Solution:

In the formula `lm(response ~ terms)`, the terms specification of the form `"first*second"` is the same as which of the following?

first:second + second:first

first + second + first:second

first:second

first + second

Solution:

Which of the following code creates n samples of size "size" with probability "prob" from the binomial distribution?

z <- rbinom(n, size, prob)

z <- rinom(n, size, prob)

z <- binom(n, size, prob)

z >- nom(n, size, prob)

R Questions Set 40:

Random variables defined via the distr package.

Solution:

How many main functions does the tidyr package provide for tidying messy data?

Solution:

Which of the following statements is used to explicitly control looping?

Solution:

What will be the output of the code?

Solution:

Each margin of a figure is considered to have a number of

Solution:

Which of the following functions is used to plot multiple histograms?

Solution:

All columns in a matrix must have the same mode and the same length.

Solution:

Which of the following sorts a data frame by the order of the elements in column B?

Solution:

In the formula `lm(response ~ terms)`, the terms specification of the form `"first*second"` is the same as which of the following?

Solution:

Which of the following code creates n samples of size "size" with probability "prob" from the binomial distribution?

Solution:

Related Question Sets:

Related Topics:

R Questions Set 40:

Random variables defined via the distr package.

Solution:

How many main functions does the tidyr package provide for tidying messy data?

Solution:

Which of the following statements is used to explicitly control looping?

Solution:

What will be the output of the code?

Solution:

Each margin of a figure is considered to have a number of

Solution:

Which of the following functions is used to plot multiple histograms?

Solution:

All columns in a matrix must have the same mode and the same length.

Solution:

Which of the following sorts a data frame by the order of the elements in column B?

Solution:

In the formula lm(response ~ terms), the terms specification of the form "first*second" is the same as which of the following?

Solution:

Which of the following code creates n samples of size "size" with probability "prob" from the binomial distribution?

Solution:

Related Question Sets:

Related Topics:

In the formula `lm(response ~ terms)`, the terms specification of the form `"first*second"` is the same as which of the following?