Answer:
Step-by-step explanation:
The proportion of students in a psychology experiment who could remember an eight-digit number correctly for t minutes was :
0.9 − 0.3 ln(t)
the proportion that remembered the number for 5 minutes, we would substitute t = 5 into expression, 0.9 − 0.3 ln(t). It becomes
0.9 − 0.3 ln5
= 0.9 - 0.3 × 1.60943791243
= 0.9 - 0.4828
= 0.4172
Approximately 0.4 to 1 decimal place
