QUESTION 1 Which of the following is false? The Pie Chart and Pareto Chart graph

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QUESTION 1 Which of the following is false? The Pie Chart and Pareto Chart graph qualitative data The Polygon and Ogive are 'connect the dots' graphs. A polygon graphs the same data as a histogram, but with lines instead of bars. A Stem&Leaf Plot and Histogram are both graphs that display the shape and mode of qualitative data. Boxplots display the median and outliers of quantitative data. 1 points Save Answer

QUESTION 2 Given the data: 15, 16, 22, 25, 25, 25, 26, 27, 28, 30 Calculate the class width for a frequency table with 5 classes, then determine the first class. class width = 4, 15-19 class width = 3, 15-18 class width = 4, 15-18 class width = 3, 15-17 1 points Save Answer

QUESTION 3 What 'check' is used to determine if the relative frequency values in the frequency table are correct? the sum of the column is 1 (or 100%) each value is divided by 2 the pattern down the column is the class width the sum of the column is the sample size 1 points Save Answer

QUESTION 4 Use the following frequency table to calculate the midpoint of the first class: class frequency 13-25 17 26-38 23 39-51 4 1 points Save Answer QUESTION 5 What 'check' is used to determine if the midpoints in the frequency table are correct? the sum of the midpoint column is the sample size the sum of the midpoint column is 1 (or 100%) the pattern down the midpoint column is the class width each midpoint is divided by the sample size 1 points Save Answer QUESTION 6 Identify the class width used in the frequency table: class frequency 10-25 17 26-41 23 42-57 4 1 points Save Answer

QUESTION 7 How do you determine the 'data variable' from a histogram? vertical axis label horizontal axis label sum of bar heights midpoints along horizontal axis 1 points Save Answer

QUESTION 8 Which of the following graphs displays upper class limits along the x-axis? Histogram Polygon Pareto Chart Ogive 1 points Save Answer QUESTION 9 Make a stem and leaf plot of the following data and determine the shape: 115, 116, 142, 130, 116, 117, 123, 118, 126, 124, 131 Normal (bell-shaped) Uniform Bimodal Skewed left Skewed right 1 points Save Answer

QUESTION 10 What is NOT a requirement of the stem values in a stem and leaf plot? must have at least 3 stem values stem values must be in numeric order stem values must start at zero can't skip stem values

Explanation / Answer

Question 2:

Minimum value = 15

Maximum value = 30

Number of classes needed: 5

Class width = (maximum - minimum) / 5 = (30-15) /5 = 3

First class: 15 - 17

second class : 18-20

Answer: class width=3, First class: 15-17

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