Mathematics, 19.12.2019 05:31 amylumey2005
In the following problem, check that it is appropriate to use the normal approximation to the binomial. then use the normal distribution to estimate the requested probabilities. more than a decade ago, high levels of lead in the blood put 89% of children at risk. a concerted effort was made to remove lead from the environment. now, suppose only 13% of children in the united states are at risk of high blood-lead levels. (a) in a random sample of 202 children taken more than a decade ago, what is the probability that 50 or more had high blood-lead levels? (round your answer to three decimal places.) (b) in a random sample of 202 children taken now, what is the probability that 50 or more have high blood-lead levels? (round your answer to three decimal places.)
Answers: 1
Mathematics, 21.06.2019 20:50
Ms.ortiz sells tomatoes wholesale. the function p(x)=-80x^2+320x-10, graphed below, indicates how much profit she makes on a load of tomatoes if she makes on a load of tomatoes if she sells them for 4-x dollars per kilogram. what should ms.ortiz charge per kilogram of tomatoes to make on a load of tomatoes?
Answers: 2
Mathematics, 21.06.2019 21:30
Ihave a triangle with a 60 degree angle. lets use d for that angle. what are the values of e and f if d is 60 degrees? and what do you notice about the values of e and f?
Answers: 2
Mathematics, 21.06.2019 21:30
Abicycle training wheel has a radius of 3 inches. the bicycle wheel has a radius of 10 inches.approximately how much smaller, in square inches and rounded to the nearest hundredth, is the area of the training wheel than the area of the regular wheel? *
Answers: 3
In the following problem, check that it is appropriate to use the normal approximation to the binomi...
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