The proportion of students in a psychology experiment who could remember an eight-digit number correctly for t minutes was  0.9 − 0.4 ln(t)  (for t > 1). Find the proportion that remembered the number for 5 minutes. (Round your answer to one decimal place.)

Question

The proportion of students in a psychology experiment who could remember an eight-digit number correctly for t minutes was 

0.9 − 0.4 ln(t)

 (for t > 1). Find the proportion that remembered the number for 5 minutes. (Round your answer to one decimal place.)

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