The percent of persons (ages five and older) in each state who speak a language at home other than English is approximately exponentially distributed with a mean of 5.52. The lambda of this...

The percent of persons (ages five and older) in each state who speak a language at home other than English is approximately exponentially distributed with a mean of 5.52.

1. The lambda of this distribution is


2. The probability that the percent is larger than 4.68 is P(x ≥ 4.68) =


3. The probability that the percent is less than 7.26 is P(x ≤ 7.26) =