In a sample of 88 adults selected randomly from one town, it is found that 6 of them have been exposed to a particular strain of the flu. at the 0.01 significance level, test the claim that the proportion of all adults in the town that have been exposed to this strain of the flue differs from the nationwide percentage of 8%.

Select all the correct answers. what is 221,000,000,000,000,000,000 expressed in scientific notation?

Mexico city, mexico, is the world's second largest metropolis and is also one of its fastest-growing cities with a projected growth rate of 3.2% per year. its population in 1991 was 20,899,000 people. use the formula p = 20.899e0.032t to predict its population p in millions with t equal to the number of years after 1991. what is the predicted population to the nearest thousand of mexico city for the year 2010?

Which ordered pair (c,d) is a solution to the given system of linear equations- c+2d=13 -9c-4d=-15