Final answer:
To determine the mean daily high temperature in Philadelphia over an eight-day period, one must add all the temperatures together and then divide by the number of days, resulting in a mean of 75.75 degrees.
Step-by-step explanation:
Calculating the Mean Daily High Temperature
To calculate the mean daily high temperature for the eight-day period with temperatures given as 69, 77, 70, 81, 84, 86, 69, 70 degrees, we need to follow these steps:
This means that the mean, or average, daily high temperature over this eight-day period in Philadelphia is 75.75 degrees.
Understanding weather patterns and average temperatures is important for various applications, such as climate studies and urban planning.