Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_142950_1 (total_number_of_students VARCHAR, vice_chancellor VARCHAR)

### Question ###
How many members have professor edward acton as vice-chancellor?

### Accurate SQL ###

SELECT COUNT(total_number_of_students) FROM table_142950_1 WHERE vice_chancellor = "Professor Edward Acton"