Statistics questions: Mean, median, standard deviation of a frequency distribution, skewness of the data
Not what you're looking for?
1. Owens Orchards sells apples in a large bag by weight. A sample of seven bags contained the following numbers of apples: 23, 19, 26, 17, 21, 24, 22.
a. Compute the mean number and median number of apples in a bag.
2. Determine the mean and the standard deviation of the following frequency distribution.
Class Frequency
0 up to 5 2
5 up to 10 7
10 up to 15 12
15 up to 20 6
20 up to 25 3
Listed below are the commissions earned ($000) last year by the sales representatives at the Furniture Patch, Inc.
$3.9, $5.7, $7.3, $10.6, $13.0, $13.6, $15.1, $15.8, $17.1, $17.4, $17.6, $22.3, $38.6, $43.2, $87.7
a. Determine the mean, median, and standard deviation.
b. Compute the coefficient of skewness using Pearson's method.
c. Calculate the coefficient of skewness using the software method.
d. What is your conclusion regarding the skewness of the data?
1. A representative of the Environmental Protection Agency (EPA) wants to select samples from 10 landfills. The director has 15 landfills from which she can collect samples. How many different samples are possible?
Purchase this Solution
Solution Summary
This posting contains 4 problems on:Mean, median, standard deviation of a frequency distribution,coefficient of skewness of the data
Purchase this Solution
Free BrainMass Quizzes
Measures of Central Tendency
Tests knowledge of the three main measures of central tendency, including some simple calculation questions.
Terms and Definitions for Statistics
This quiz covers basic terms and definitions of statistics.
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.
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.