The number of bacteria in a certain population increases according to a continuous exponential growth model, with a growth rate parameter of per hour. how many hours does it take for the size of the sample to double?

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The jones farm has 24 cows that each produce 52 quarts of milk a day. how many quarts are produced each day altogether

In a survey of 1015 adults, a polling agency asked, "when you retire, do you think you will have enough money to live comfortably or not. of the 1015 surveyed, 534 stated that they were worried about having enough money to live comfortably in retirement. construct a 90% confidence interval for the proportion of adults who are worried about having enough money to live comfortably in retirement.