Question

martina wrote down how many glasses of water she drank during the past 7 days.
glasses of water
wednesday
thursday
friday
day
saturday
sunday
monday
tuesday
0 1 2 3 4 5 6 7 8 9 10
number of glasses
what is the mean of the numbers?

Explanation:

Step1: Extract values from the graph

Values: 9, 7, 8, 5, 4, 9, 8

Step2: Calculate sum of values

$\sum = 9 + 7 + 8 + 5 + 4 + 9 + 8 = 56$

Step3: Compute the mean

$\text{Mean} = \frac{56}{7} = 8$

Answer:

8