Concept explainers
To draw stem and leaf plot, a histogram and a box and whisker plot with the given data.
Answer to Problem 119CUR
The given 3 diagrams are the required diagrams of the data.
Explanation of Solution
Given is the data
Graph: Stem and Leaf plot
Interpretation of the graph: In the above graph , the data is spread and written in this way to make it more presentable. There are total 10 numbers, It helps in visualizing it better.
Graph: Histogram
Interpretation of the graph: The histogram is made with the help of frequency
Graph: Box and whisker plot
To plot box and whisker, median, quartile 1 , quartile 3 , lower value and higher value is required.
To find median, Arrange the data in Ascending or Descending order.
Find the mean of two middle values if number of observation is even, else the middle value of the data will be the median
Calculation:
Arrange in ascending order 50,51,53,60,63,67,68,71,74,79
=(63+67)/2
=130/2
=65
Q1= Median of 50,51,53,60,63= 53
Q3= Median of 67,68,71,74,79= 71
Lower value = 50
Higher value= 79
Interpretation of the graph: In the graph, the middle line at 65 shows the median, On the left, Q1 and Lower value is represented and on the Right Q3 and higher value is represented.
Chapter 12 Solutions
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
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