Martin tracked the amount of water he drank for an entire week. The bar graph shown here displays the information about his water consumption.
What is the median of the daily data?
A) 18
B) 16
C) 14
D) 12
Median means the "middle value." See what you can do with that
To find the median of the daily data, we need to arrange the values in ascending order and then identify the middle value.
From the bar graph, we can determine the amount of water consumed each day: 12, 14, 16, 18, 12, 14, 18.
Arranging the values in ascending order: 12, 12, 14, 14, 16, 18, 18.
Since there are seven values, the middle value would be the fourth value. Therefore, the median of the daily data is 14.
So, the correct answer is: C) 14.
To find the median of the daily data, we need to arrange the values in ascending order. Let's look at the bar graph and determine the values:
To calculate the median, we need to arrange the data points in ascending order. Here are the observations from the bar graph:
Monday: 20
Tuesday: 16
Wednesday: 12
Thursday: 14
Friday: 18
Saturday: 22
Sunday: 12
Arranging the data in ascending order:
12, 12, 14, 16, 18, 20, 22
To find the median, we need to determine the middle value of the data set. In this case, the median is the value that lies exactly in the middle when the data set is arranged in ascending order.
Since we have 7 data points, the middle value will be the (7 + 1) / 2 = 8 / 2 = 4th value.
The 4th value is 16, so the median of the daily data is 16.
Therefore, the correct answer is B) 16.