3 of 20 Class Frequency 27-32 33-38 39-44 11 45-49 4 50-55 2 Why is this distribution incorrect? O Classes should be overlapped. O The frequencies are skewed. The fourth class width is different from the others. O There may be additional values not included. 4 of 20 Why is it sometimes easier to use a frequency table to interpret data than to examine a distribution of raw scores? O A frequency table transforms the raw scores by showing the means. O Frequency tables show patterns, organizing the data by how often each score occurs. O Raw scores are not based on the sample. O Raw scores do not represent the data.5 of 20 What is a data entry that is far removed from the other entries in the data set? O Outlier O Inlier O Weighted Mean O Frequency 6 of 20 Outliers in data should usually be disregarded. O True O False 7 of 20 Can there be more than one outlier in a data set? O Yes O No 8 of 20 If a sample consists of 1500 test scores, of them would be at or below the third quartile. O 75 O 750 O 375 6 11259 of 20 Pie charts and bar charts are used to show O continuous data O abstract data O frequencies 10 of 20 Imagine a researcher found that 65% of bystanders helped a female who dropped her packages but only 32% helped a male that dropped his packages. What type of graph would be appropriate to display this data? O Bar graph O Frequency polygon O Histogram O Not enough information is available to answer the question. 11 of 20 "Dressing up" a chart by using three-dimensional bars or pictures may actually make the chart harder to read and interpret. O True O False 12 of 20 Pie charts and bar charts are best used to display data. categorical12 of 20 Pie charts and bar charts are best used to display data. O categorical O discrete O continuous O ordinal 13 of 20 What kind of graph is this? 0.07 0.06 0.05 0.04 Density 0.03 0.02 0.01 0.00 30 35 40 45 50 55 60 65 70 Nose lengths (mm) O frequency histogram14 of 20 The number of male and female professors at a state college are recorded and placed in a frequency table. What type of graph should be used to present these data? O Bar graph O Histogram O Polygon O Scatterplot 15 of 20 The boxplot below shows salaries for Construction workers and Teachers. Construction Teacher 20 25 30 35 40 45 50 Salary (thousands of $) If a person is making the median salary for a construction worker, they are making more than what percentage of Teachers? O 0% O 25% O 50% O 75%16 of 20 The box plot below shows weekly spending on groceries. Weekly spending on groceries ($) 40 60 80 100 120 140 What percentage of the data is between $90 and $140? O 25% 0 50% O 75% O 100% 17 of 20 Scores from a quiz are recorded and are presented in a frequency table. What type of graph should be used to present the quiz scores? O Pie chart Histogram O Polygon18 of 20 What is the shape of the following distribution? 12233334 45 O Symmetrical O Positive Skew O Negative Skew O None of the above 19 of 20 The box plot below shows scores on a math test. Math Scores 8 9 10 Based on the box plot, which best describes the data? O The shape is skewed to the right. O The shape is skewed to the left. O The shape is symmetric. O 75% of the data is between 1 - 8.O None of the above 19 of 20 The box plot below shows scores on a math test. Math Scores 8 9 10 Based on the box plot, which best describes the data? O The shape is skewed to the right. O The shape is skewed to the left. The shape is symmetric. O 75% of the data is between 1 - 8. 20 of 20 Negative skew in a distribution may be due to a O floor effect. O large sample size. O wide variety of participants. O ceiling effect.1 of 20 In a grouped frequency distribution, empty classes should be avoided. O True O False 2 of 20 Cumulative frequency is expressed as a while relative frequency can be expressed as a O percentage, count O ratio, number O count, proportion O range, percentile 3 of 20 Class Frequency 27-32 33-38 39-44 11 45-49 4