<prompt> If a 95 Confidence Interval for the prevalence of cancer smokers aged 65 years is 56 to 76, the chance that the prevalence could be less than 56 is -Nil442.505  <response>: In this question:56 to 76 confidence interval covers 95 2SD of values.That means 5 of values will fall outside the range of 56-76 2.5 values will be below 56 and 2.5 values will be above 76. 