Exam 2: Describing, Exploring, and Comparing Data

If a relative frequency distribution were constructed for the width of the channels, what would be the relative frequency for the class with a width of 20-24m?

Use the frequency distribution to answer the next questions. A sample of 80 juvenile salmon is grouped into the resulting frequency distribution based on their weights. -Determine the sample mean of the weights of the juvenile salmon summarized in the frequency distribution.

If a Pie Chart were constructed for the weights of the salmon, what would be the measure of the central angle for the class weighing 200-249 grams?

Use the following sample data for the next questions. A study of the percentage of alcohol content of nine randomly selected expensive beers yielded the following data: -Construct a stem and leaf plot of the beers' percentage of alcohol content.

Use the following sample data for the next questions. A study of the percentage of alcohol content of nine randomly selected expensive beers yielded the following data: -Find the percentile corresponding to 9% alcohol.

Use the frequency distribution to answer the next questions. A sample of 272 log jams found in river channels in the Northwest U.S. is grouped into the resulting frequency distribution based on the width of the channel in which the log jams were found. -Identify the class width, the class midpoints, and the class boundaries.

The distribution of the histogram for the weights of the juvenile salmon appears:

Use the frequency distribution to answer the next questions. A sample of 80 juvenile salmon is grouped into the resulting frequency distribution based on their weights. -Identify the class width, the class midpoints, and the class boundaries.

Use the following sample data for the following questions. A study of physical fitness tests for 12 randomly selected Pre-Medical students measured their exercise capacity (in minutes). The following data resulted: -Construct a box plot for the students' exercise capacity.

Use the following sample data for the next questions. A study of the percentage of alcohol content of nine randomly selected expensive beers yielded the following data: -Find the standard deviation and the variance for the sample data of the beers' percentage of alcohol content.

Use the following sample data for the next questions. A study of the percentage of alcohol content of nine randomly selected expensive beers yielded the following data: -Using four classes, construct a frequency distribution of the beers' percentage of alcohol content.

Use the following sample data for the following questions. A study of physical fitness tests for 12 randomly selected Pre-Medical students measured their exercise capacity (in minutes). The following data resulted: -Find the standard deviation and the variance for the sample data of the students' exercise capacity.

If a cumulative frequency distribution were constructed for the width of the channels, what would be the cumulative frequency for the class width less than 10m?

Use the frequency distribution to answer the next questions. A sample of 272 log jams found in river channels in the Northwest U.S. is grouped into the resulting frequency distribution based on the width of the channel in which the log jams were found. -Construct a corresponding histogram for the width of the channels.

If a relative frequency distribution were constructed for the weights of the salmon, what would be the relative frequency for the class weighing 150-199 grams?

Use the following data for the next questions. Dental researchers found that a sample of females scored the following on the Dental Hygiene Fear Survey: -Use the Range Rule of Thumb to estimate the minimum and maximum "usual" total fear score for females.

Use the following sample data for the following questions. A study of physical fitness tests for 12 randomly selected Pre-Medical students measured their exercise capacity (in minutes). The following data resulted: -Find the sample data value corresponding to P₂₄ .

Use the frequency distribution to answer the next questions. A sample of 272 log jams found in river channels in the Northwest U.S. is grouped into the resulting frequency distribution based on the width of the channel in which the log jams were found. -Find the sample standard deviation of the width of the channels summarized in the frequency distribution.

Use the following data for the next questions. Dental researchers found that a sample of females scored the following on the Dental Hygiene Fear Survey: -Convert a total fear score of 10 to a z-score.

Use the following sample data for the following questions. A study of physical fitness tests for 12 randomly selected Pre-Medical students measured their exercise capacity (in minutes). The following data resulted: -Construct a stem and leaf plot of the students' exercise capacity.