In R, with the code below: We create a new object a as a numeric sequence (1, 2, ..., 10), and a second new object b as a vector of characters (`a', `b', `c', `d', `e'), and then we  save them to a file mydata   > a <- 1-10 > b <- letters[1-5] > save(a, b, file="./data/mydata.")   > a <- 1:10 > b <- letters[1:5] > save(a, b, file="./data/mydata")   > a <- 1...10 > b <- letters[1...5] > save(a, b, file="./data/mydata.Rdata")   > a <- 1:10 > b <- letters[1:5] > save(a, b, file="./data/mydata.Rdata")

A four-bit code word is any sequence of four digits, where each digit is either a 0 or a 1. For example, 0100 and 1011 are four-bit code words. Complete parts (a) through (d) below. (a) How many different four-bit code words are there? 16 (b) How many different six-bit code words, such as 001011, are there? 64 (c) If a vocabulary of 1000 code words is required, how long must the words be? At least 10 bits. (d) What is the probability that a randomly selected four-bit code word has no 0 following any 1? |(Type an integer or a simplified fraction.)

How do you compute the following