An enemy force is known to be hiding in one of twenty possible locations. General Staff orders a search to be made by picking a site at random, inspecting it, then picking the next site to be inspected at random from among the remaining sites and so on. After fifteen sites have been inspected, the search is still unsuccessful. The General Staff begins to believe that the enemy has somehow vanished. Is this belief justified

Which of the following statements is true about social anxiety disorder? social anxiety disorder tends to develop in early adulthood. social anxiety disorder often co-occurs with mood disorders and other anxiety disorders. social anxiety disorder is relatively rare, with a lifetime prevalence of about three percent in the united states. lesser than 30 percent of adults with social anxiety disorder report humiliating experiences that contributed to their symptoms.