How many people, in each group, have a very high level of cholesterol?Į) Comparing the two groups, which group has more people with a higher level of cholesterol?Ī) smokers: 1 + 2 = 3 people, non smokers: 2 + 4 + 7 = 13 peopleī) smokers: 3 + 4 + 5 = 12 people, non smokers: 7 + 6 + 3 = 16 peopleĬ) smokers: 6 + 5 + 4 = 15 people, non smokers: 3 + 2 + 1 = 6 peopleĭ) smokers: 3 + 2 = 5 people, non smokers: noneĮ) The group of smokers have more people with higher cholesterol. How many people, in each group, have a high level of cholesterol?ĭ) People with a cholesterol level of 190 or above are said to have a very high level of cholesterol. How many people, in each group, are in the border high?Ĭ) People with a cholesterol level between 160 and 189 inclusive are said to have a high level of cholesterol. How many people, in each group, have a near ideal level of cholesterol?ī) People with a cholesterol level between 130 and 159 inclusive are said to be in the border high. ![]() So for example 11 | 8 = 118 and so on.Ī) People with a cholesterol level of 129 or less are said to have a near ideal level of cholesterol. The digits in the stem represents the hundreds and tens and the digit in the leaf represents the ones. The back to back stem and leaf plot below shows the LDL cholesterol levels (in milligram per deciliter mg/dL) of two groups of people, smokers and non smokers. So for example 5 | 3 = 53 and so on.Ī) How many students scored higher than 60 in section 1?ī) How many students scored higher than 60 in section 2?Ĭ) What are the minimum and maximum scores in section 1?ĭ) What are the minimum and maximum scores in section 2?Į) Without counting, which section has more students scoring 80 or more?į) Without counting, which section has more students scoring 50 or less? The digit in the stem represents the tens and the digit in the leaf represents the ones. In 2010, the class marks ranged from 70 to 100. In 2009, her class had marks anywhere from 76 to 95. There is a wide variation in the marks for both years in Mrs. ![]() The back to back stem and leaf plot below shows the exam grades (out of 100) of two sections. Construct a two-sided stem-and-leaf plot for the data and compare the distributions. So for example 0 | 8 = 0.8, 1 | 2 = 1.2 and so on.Ī) What is the range of the data in the stem and leaf plot?ī) How many students have a grade of 2 or more?Ī) range = maximum value - minimum value = 4.0 - 0.8 = 3.2ĭ) There are 18 data values and already ordered in the stem and leaf diagram. The digit in the stem represents the ones and the digit in the leaf represents the tenths. The stem and leaf plot below shows the grade point averages of 18 students. Tutorial on how to read and interpret stem and leaf diagrams with examples and solutions. Reading and Interpreting Stem and Leaf Diagrams - Examples With Solutions The stem-and-leaf plot or stem plot, for short, is a way to quickly create a graphical display of quantitative data to get an idea of its shape.
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