If a worker at this fast food restaurant is selected at random, what is the probability that the worker earns more than $6.75? A) 27.64% B) 5.17% C) 28.77% D) 42.07%. 14. The average diameter of sand dollars on a certain island is 3.00 centimeters with a standard deviation of 0.70 centimeters.If 9 sand dollars are chosen at random for a collection, find the probability that the average diameter of those sand dollars is more than 2.790 centimeters.Assume that the variable is normally distributed. A) 0.8019 B) 0.8131 C) 0.7959 D) 0.8159. 15.. The average number of mosquitoes in a stagnant pond is 80 per square meter with a standard deviation of 8. If 16 square meters are chosen at random for a mosquito count, find the probability that the average of those counts is more than 81.6 mosquitoes per square meter.
Viruses or bacteria infect the larynx, or voice box, and cause it to. swell. That produces irritation and soreness, and changes the voice, making you sound hoarse and unable to speak above a whisper, or even. causing you to lose your voice entirely for a few days. Often, the virus. comes from another ailment, such as a cold, the flu, or bronchitis.
Symptoms & Signs. Bad breath, medically known as halitosis, is a common problem. Bad breath is usually simple and preventable. Dietary factors as well as tobacco and alcohol use may all be factors in causing bad breath. Poor oral hygiene, gum disease, tooth decay, or mouth infections can also be causes of halitosis. Infections in the lungs, sinuses, or airways can also cause bad breath due to the presence of nasal secretions that may drain into the mouth. Chronic postnasal drip, for example as occurs with sinus infections, can be a cause of bad breath. Coughing up sputum from lung infections can also cause bad breath. Dry mouth (xerostomia) can be a side effect of certain medications, increasing the tendency to develop bad breath.