I really don’t understand it, tysm to anyone who can answer this :)

Given:

The frequency distribution table.

To find:

The mean average score on a test.

Solution:

The frequency distribution table is

     x                                     a                               xa

     y                                     b                               yb

     z                                     c                               zc

  Sum                              a+b+c                          xa+yb+zc

Now, the mean average score on the test is

Therefore, the mean average score on the test is .

a line is an defined derm because it

a)contains an infinite number of points b) can be used to create other geometric shapes c)describes something that does not have width or depth d) is a term that does not have a formal definition. a line is an undefined term because it: contains an infinite number of points.

12cm

the answer is d