Inferential statistics
a. are used to generally describe the data.
b. are used to make conclusions about the data. c. focus mainly on scales of measurement.
d. focus mainly on standard deviations.

Inferential statistics are usually used to conclude data

Explanation:

Inferential statistics is the body part of statistics. It has been used to define the data of a study. Inferential statistics have two branches. It is used for random sampling from the population and described the data collected from the population. Inferential statistics used when the whole population data collection is not convenient or possible.  

For instance, if a person wants to collect the data of a nail that is manufactured the mill that is impractical and impossible. Thus inferential statistics is beneficial here to collect the data and to describe the data.

explanation:

it was a suprise attack organized by geogre washington against the hessian forces in trenton, new jersey. it began the night o december 25, 1776 and ended december 26, 1776

could you go a bit more in depth with you question? it's quite hard to understand. as soon as you do that i will be glad to : )