The temperatures (in °F ) in a city on randomly selected days during the summer are 89, 85, 90, 87, 86, 91, 88, and 89. What is the mean temperature? Round your answer to one decimal place.(1 point)

Question

___°F

Answer 1

To find the mean temperature, you need to add all the temperatures together and then divide by the number of days.

The temperatures are: 89, 85, 90, 87, 86, 91, 88, and 89.

1. First, add the temperatures: \( 89 + 85 + 90 + 87 + 86 + 91 + 88 + 89 = 89 + 85 = 174 \) \( 174 + 90 = 264 \) \( 264 + 87 = 351 \) \( 351 + 86 = 437 \) \( 437 + 91 = 528 \) \( 528 + 88 = 616 \) \( 616 + 89 = 705 \)

   So, the total sum is 705.

2. Next, divide by the number of temperatures (which is 8): \[ \text{Mean} = \frac{705}{8} = 88.125 \]

3. Finally, round to one decimal place: \[ \text{Mean} \approx 88.1°F \]

Thus, the mean temperature is 88.1°F.