1. Savannah recorded the average rainfall amount, in inches, for two cities over the course of 9 months. City A: {4, 3.5, 5, 5.5, 4, 2, 3, 4.2, 4}
City B: {5, 6, 3.5, 5.5, 4, 6, 3, 4.5, 5}
(a) What is the mean monthly rainfall amount for each city?
(b) What is the mean absolute deviation (MAD) for each city? Round to the nearest tenth.
(c) What is the median for each city?
(d) What is the mode of the data for each city?
(e) What inference can be made about the rainfall in cities A and B?
Answer all

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Ariana starts with 100 milligrams of a radioactive substance. the amount of the substance decreases by 20% each week for a number of weeks, w. the expression 100(1−0.2)w finds the amount of radioactive substance remaining after w weeks. which statement about this expression is true? a) it is the difference between the initial amount and the percent decrease. b) it is the difference between the initial amount and the decay factor after w weeks. c) it is the initial amount raised to the decay factor after w weeks. d) it is the product of the initial amount and the decay factor after w weeks.

Sum of the interior angles of a pentagon