Find the mean (average), total absolute distance from the mean, and the mean absolute deviation from the given data set.
{6, 7.5, 8, 7, 9.5, 9.5, 10.5, 11, 11, 9}
Mean =
(answer should be 2 decimal places)
(answer should be 2 decimal places)
Total absolute distance from the mean =
(answer in 2 DECIMAL places)
Mean absolute deviation (MAD) =

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.

Jonathan can type 20 documents in 40 minutes ,and susan can type it in 30 minutes and jack can type it in 24 minutes working together ,how much time will it is take them type the same document

Type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar.