R commands

Question 1

pnorm

Answer 1

Finds the probability of values less than or equal to (or greater than or equal to) the value q (w/ either lower.tail=TRUE or lower.tail = FALSE), for a normal distribution with mean and standard deviation specified

Question 2

qnorm

Answer 2

Finds the value below (or above) which an area of probability p occurs, in a normal distribution with mean and standard deviation as specified

Question 3

dbinom

Answer 3

dbinom calculates the probability of a specific outcome/number of successes

Question 4

pbinom

Answer 4

pbinom adds the probabilities of all outcomes/no. of successes less than or equal to a certain value, to calculate a cumulative result

Question 5

pt

Answer 5

Basically just t-statistic entered into R to find corresponding p-value, used lower.tail = TRUE for negative t-statistic and lower.tail = FALSE for positive t-statistic

Question 6

qt

Answer 6

Finds t-value

Question 7

pchisq

Answer 7

Finds p-value for data with chi-squared distribution

Question 8

qchisq

Answer 8

Finds a chi-squared critical value

Question 9

pf

Answer 9

Gives the distribution function

Question 10

qf

Answer 10

Gives the quantile function