Find the mean and variance of the binomial distribution with \(n=6\) and \(p=0.55\) by using

(a) Table 1 and the formulas defining \(\mu\) and \(\sigma^{2}\);

(b) The special formulas for the mean and the variance of a binomial distribution.

Data From Table 1

Transcribed Image Text:

Table 11.1 Time to assess problem when a relay tower breaks down Difficulty Assessment Level Difficulty Experience(yr) Time Simple 0 1.5 3.0 Simple 0 2.0 2.3 Simple 0 4.5 1.7 Simple 0 8.0 1.2 Complex 1 1.5 6.7 Complex 1 0.5 7.1 Complex 2.5 5.3 Complex 3.0 5.0 Complex 5.0 5.6 Complex 6.0 4.5 Simple 0 0.0 4.5 Simple 0 0.5 4.7 Simple 0 3.5 4.0 Simple 0 4.0 4.5 Simple 0 5.0 3.1 Simple 0 6.0 3.0 Complex 0.0 7.9 Complex 3.0 6.9 Complex 5.5 5.0 Complex 5.0 5.3 Complex 3.5 6.9