last summer, maya was a lifeguard at the ginger hill community pool. she checked the temperature of the pool…
last summer, maya was a lifeguard at the ginger hill community pool. she checked the temperature of the pool each morning. this box plot shows the results. pool temperature (°f) what percent of the mornings was the pool temperature 80°f or higher? %
Answer
Explanation:
Step1: Understand box - plot quartiles
In a box - plot, the box represents the inter - quartile range (IQR). The left edge of the box is the first quartile ($Q_1$), the line inside the box is the median ($Q_2$), and the right edge of the box is the third quartile ($Q_3$). The whiskers extend to the minimum and maximum values. Here, $Q_1 = 79$, median $Q_2=80$, $Q_3 = 82$.
Step2: Calculate the percentage
The box - plot divides the data into four quartiles, each representing 25% of the data. The values 80°F or higher start from the median. Since the median and above account for 75% of the data (the median divides the data in half, and the third - quartile and above is another 25%), the percentage of mornings with a pool temperature of 80°F or higher is 75%.
Answer:
75