In a large school district, it is known that 25% of all students entering kindergarten are already reading. A simple random sample of 10 new kindergarteners is drawn. What is the probability that fewer than three of them are able to read?

Suppose 90% of U.S. adults think social media is useful in daily life. Two adults were randomly selected, what's the probability that one think social media is useful, the other thinks not? a) (0.1)(0.1) b) (0.1)(0.9) c) (0.9)(0.9) d) (0.9)(0.1) x 2

9. An experimental drug has been shown to be 75% effective in eliminating symptoms of allergies in animal studies. A small human study involving six participants is conducted. What is the probability that the drug is effective on half of the participants?A)0.132B)0.868C)0.50D)0.20

Before 1918, approximately 55% of the wolves in a region were male, and 45% were female. However, cattle ranchers in this area have made a determined effort to exterminate wolves. From 1918 to the present, approximately 65% of wolves in the region are male, and 35% are female. Biologists suspect that male wolves are more likely than females to return to an area where the population has been greatly reduced. (Round your answers to three decimal places.)