To calculate the number of times an average person blinks in a year, we start with the given information:
- An average person blinks 15 times per hour.
- There are 24 hours in a day and 365 days in a year.
First, we calculate the number of hours in a year:
\[ \text{Hours in a year} = 24 \text{ hours/day} \times 365 \text{ days/year} = 8,760 \text{ hours/year} \]
Next, we calculate the total number of blinks in a year:
\[ \text{Total blinks/year} = \text{blinks/hour} \times \text{hours/year} = 15 \text{ blinks/hour} \times 8,760 \text{ hours/year} \]
Now, we do the multiplication:
\[ 15 \times 8,760 = 131,400 \]
Finally, we convert this number into scientific notation:
\[ 131,400 = 1.314 \times 10^5 \]
Thus, the average person blinks approximately 1.314 × 10^5 times in a year.
The correct response is:
1.314 × 10^5