75% of all U.S. adults use some type of vision correction. Suppose 1000 adults are surveyed about using some type of vision correction. Use the normal curve to represent the binomial distribution and then find the indicated probabilities. Round the mean and standard deviation to the nearest whole number. 72. Find the probability that at least 722 of the surveyed adults use some type of vision correction. 73. Find the probability that between 750 and 778 of the surveyed adults use some type of vision correction. 74. Find the probability that at most 736 of the surveyed adults use some type of vision correction. 75. Find the probability that between 708 and 792 of the surveyed adults use some type of vision correction.

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