Consider the set of all propositions. If T(x) means that x is a tautology and C(x) means that x is a contradiction, express the following statement using logical operators, predicates, and quantifiers. A. The conjunction of two tautologies is a tautology. B) Some propositions are tautologies. C) The negation of a contradiction is a tautology. D) The disjunction of two contingencies can be a tautology.

Amajor grocery store chain is trying to cut down on waste. currently, they get peaches from two different distributors, whole fruits and green grocer. out of a two large shipments, the manager randomly selects items from both suppliers and counts the number of items that are not sell-able due to bruising, disease or other problems. she then makes a confidence interval. is there a significant difference in the quality of the peaches between the two distributors? 95% ci for pw-pg: (0.064, 0.156)