3 years ago

What is the mean absolute deviation and what does it tell you about data sets?

1 answer:

8 0

The mean absolute deviation is the average of the average. It shows the average distance of the numbers in a data set from the mean. After finding the mean, you find the absolute value of the distance between each number, and find the mean of those numbers to find the mean absolute deviation.

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If you choose a card at random from a well shuffled deck of 52 cards, what is the probability that the card chosen is not a hear

Vinvika [58]

Sample space ={13 H + 13 D + 13 S + 13 C} = 52 cards

P(getting one heart) = 13/52 = 1/4
P( getting NO heart) = 1-1/4 = 3/4 = 0.75

4 0

3 years ago

Which are the solutions of x2 = –13x – 4?

kobusy [5.1K]

x2 = -13x - 4=

2x = -13x - 4=

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15x=-4