Question

how to find frequencies if the mean is given

Answer 1

find class marks of all classes first.

after it multiply all frequencies with class marks and add up.

add all frequencies and divide both.

answer found will be ur mean

Answer 2

hey buddy if this helped you then plz mark it as brainliest.Note that you can use only direct method not assume mean or step deviation bcause in that the value of f1 will cut.