A headline in USA Today states that “most stay at first job less than 2 years.” That headline is based on an Experience. com poll of 320 college graduates. Among those polled, 78% stayed at their first full-time job less than 2 years. a. Assuming that 50% is the true percentage of graduates who stay at their first job less than two years, find the mean and standard deviation of the numbers of such graduates in randomly selected groups of 320 graduates.

.95

step-by-step explanation:

ƒ = 0.03b

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step-by-step explanation:

there is only one way to arrange all the eight relative to each other because they are not distinct. we have

now there are nine places to place an (and not more than one in one place).   because we have four symbols, we need to choose four of these nine places to insert an . order does not matter because the are not distinct.

thus there are 1 · c(9,4) ways, or, if we calculate it,

thus there are 126 ways to form such "words."

stock holders gave company a contract to lay tack to 2 to 3 times actual cost and pocketed profits

-took $23 mill in stocks