In a cognitive psychology experiment investigating memory recall, 47 out of 73 participants successfully recalled a sequence of words under a high-distraction condition. What is the percentage of participants who successfully recalled the sequence, expressed to three significant figures?
64.3%64.3\%64.3%
64.4%64.4\%64.4%
64.38%64.38\%64.38%
0.644%0.644\%0.644%
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.