5. The table of random digits (Table 7.1, page 298) was produced by a random mechanism that gives each digit probability 0.1 of being a 0. What proportion of the first five lines in the table are 0s? This proportion is an estimate of the true probability, which in this case is known to be 0.1.
5.
The first five lines contain 200 digits, of which 21 are 0s. The proportion of 0s is (see the table on next page).