A cognitive psychologist measures the reaction times (in seconds) of nine participants on a selective attention task. The recorded times are as follows:
0.42,0.55,0.38,0.42,0.61,0.47,0.42,0.55,0.50 0.42, \quad 0.55, \quad 0.38, \quad 0.42, \quad 0.61, \quad 0.47, \quad 0.42, \quad 0.55, \quad 0.50 0.42,0.55,0.38,0.42,0.61,0.47,0.42,0.55,0.50What is the mode for this set of data?
0.480.480.48
0.420.420.42
0.470.470.47
0.550.550.55
513 exam-style questions on OCR A Level Psychology Data recording, analysis and presentation. Each one has a worked solution and a mark scheme showing where the marks go.