What is the mean absolute deviation

1 answer:

3 0

Mean absolute deviation (MAD) of a data set is the average distance between each data value and the mean. Mean absolute deviations is a way to describe variation in a data set

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What is 7/8 - 2/7 in the simplest form

MrRissso [65]

7/8 - 2/7

by using common multiple

=7 * 7 - 2 * 8 / 56

=49 - 16 / 56

=33/56

Thus 33/56 is requried annswer.

6 0

3 years ago

ruben is buying bricks for a project. he knows that 5 bricks weigh 26 1/4. he wants to know the weight of 24 bricks

Phoenix [80]

Answer:

the weight of 24 bricks is :

$124\frac{4}{5}$

Step-by-step explanation:

$26\frac{1}{4} =26+\frac{1}{4} =\frac{26\times 4}{4} +\frac{1}{4} =\frac{105}{4}$

It is clear that there is a proportional relationship between the number of bricks and their weights then :

$\frac{26\frac{1}{4} }{5} =\frac{x}{24} \Longrightarrow \frac{\left( \frac{105}{4} \right) }{5} =\frac{x}{24} \Longrightarrow \frac{26}{5} =\frac{x}{24}$