Which of the following are considered measures of variability?

i. mean
ii. interquartile range
iii. mean absolute deviation

the answers are interquartile range and mean absolute deviation

Step-by-step explanation:

a negative exponent is translated as follows:

so, we have

the mistake in the pattern is that :

b. the decimal point was moved one too many place values each time

the correct pattern could be made by :

b. moving the decimal point to the right the same numbers of place values as the exponents