Statistics
Not what you're looking for?
Question:
The following stem and leaf display represents the final exam scores for a class of 25 literature students:
[Please refer to the attachment for the figure]
a. Convert the stem and leaf display into a frequency distribution, using a lower limit for the first class of 20 and a class width of 15. Complete the following frequency distribution table.
b. Using the frequency distribution table, calculate the mean exam score of the students.
c. Using the frequency distribution table, calculate the standard deviation of exam scores.
d. Construct a cumulative percentage of the given of examination scores
Purchase this Solution
Solution Summary
This solution is comprised of detailed step-by-step calculation and analysis of the given problem and provides students with a clear perspective of the underlying concept.
Purchase this Solution
Free BrainMass Quizzes
Know Your Statistical Concepts
Each question is a choice-summary multiple choice question that presents you with a statistical concept and then 4 numbered statements. You must decide which (if any) of the numbered statements is/are true as they relate to the statistical concept.
Terms and Definitions for Statistics
This quiz covers basic terms and definitions of statistics.
Measures of Central Tendency
This quiz evaluates the students understanding of the measures of central tendency seen in statistics. This quiz is specifically designed to incorporate the measures of central tendency as they relate to psychological research.
Measures of Central Tendency
Tests knowledge of the three main measures of central tendency, including some simple calculation questions.