A naturalist randomly selects three leaves from this set, without replacement. Determine the following probabilities. (a) Exactly one has undergone both types of transformations. (b) At least one has undergone both transformations. (c) Exactly one has undergone one but not both transformations. (d) At least one has undergone at least one transformation.

Now, martin can reasonably guess that the standard deviation for the entire population of people at the mall during the time of the survey is $1.50. what is the 95% confidence interval about the sample mean? interpret what this means in the context of the situation where 95 people were surveyed and the sample mean is $8. use the information in this resource to construct the confidence interval.