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The percent of persons (ages five and older) in each state who speak a language at...

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 7.14.

  1. The lambda of this distribution is
  2. The probability that the percent is larger than 5.46 is P(x ≥ 5.46) =
  3. The probability that the percent is less than 11.73 is P(x ≤ 11.73) =
  4. The probability that the percent is between 6.14 and 9.14 is P(6.14 ≤ x ≤ 9.14) =
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