A cumulative frequency diagram is drawn by plotting the upper class boundary with the cumulative frequency. The upper class boundaries for this table are 35, 40, 45, 50 and 55. Cumulative frequency is ...

Why is innumeracy so widespread even among otherwise educated people? The reasons, to be a little simplistic, are poor education, psychological blocks, and romantic misconceptions about the nature of ...

Thursday (August 21) is GCSE results day for pupils across the UK In Northern Ireland, nearly one in three pupils earned a top grade this year Across the two subjects all students usually take, more ...