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    Frequency Distribution

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    Business Statistics: Percent Frequency & Cumulative Frequency

    1. The number of sick days taken (per month) by 200 factory workers. The cumulative percent frequency for the class of 16-20 is Number of Days Frequency 0-5 120 6-10 65 11-15 14 16-20 1 2. A survey of 400 college seniors resulted in the following cross tabulation regard

    Statistical Analysis

    In a recent ranking of top graduate business schools in the United States published by U.S. News & World Report, data were provided on a number of attributes of recognized graduate programs. Specifically, the following variables were considered by U.S. News & World Report in establishing its overall ranking: each program's ratin


    1. Find the mean, variance, standard deviation of the binomial distribution with the given values of n and p. n=122, p=0,29 2. Use the contingency table to the right to calculate marginal frequencies and find the expected frequency for each cell in the contingency table. Assume that the variables are independent. Treatmen

    Statistics: Frequency and Degrees of freedom

    See attached data file. Question a: A survey of the opinions of property owners about a street widening project was taken to determine whether the resulting opinion was related to the distance of front footage. A randomly selected sample of 100 property owners was contacted and the results are shown below. What is the e

    Purpose of developing a frequency distribution in business

    1) What is the purpose of developing a frequency distribution in business? What is the relationship between the relative frequency and the cumulative frequency? Develop a frequency distribution table using data from the business world. Please provide a response explaining thoroughly.

    Organize Data Overview

    Â?¢organize the home prices in increasing order â?¢organize the prices into six bins â?¢create a table of frequencies and relative frequencies â?¢create a histogram and a pie chart â?¢write a brief conclusion about your data based on the results you have so far

    Frequency Distributions

    You are the production manager for an operation that produces circuit boards. Each board is tested at the end of the manufacturing process. Rejected boards are discarded and have no future value. For product B-17, you have kept data on the number of rejects for the past 38 weeks. These data are: Number of rejected bo

    Construct a frequency distribution table

    Q1 The following data show the cost of electricity during August 2010 for a random sample of 50 one-bedroom apartments in a large city: Raw Data on Electricity Charges (RM) 152 75 180 157 120 81 132 106 61 170 120 164 69 95 151 90 127 192 100 144 120 120 185 154 102 107 123 147 88 146 74 142 129 133 109 122 166 145 118

    Mean & Variance

    1.) A commuter travels many miles to work each morning. She has timed this trip 5 times during the last month. The time (in minutes) required to make this trip was 44, 39, 41, 35, and 41. The mean time required for this trip was 40 minutes. What is the variance for this sample data? 2.) The ages of students in a class have b

    Percentages and Frequency of Scores

    Assume that a set of test scores is normally distributed with a mean of 100 and a standard deviation of 20. Use the 68-95-99.7 rule to find the following quantities: Suggestion: make a drawing and label first a. Percentage of scores less than 100 b. Relative frequency of scores less than 120 c. Percentage of scores less

    Expected Frequencies and Goodness of Fit Test

    A salesperson makes four calls per day. A sample of 100 days gives the following frequencies of sales volumes. Number of Sales 0 1 2 3 4 Observed Frequency 30 32 25 10 3 Total 100 Records show sales are made to 30% of all sales calls. Assuming independent sales

    Excel function to test educational level and frequency

    See attached file. Use the instructions on the first tab to complete Steps 1 Count the number of times each educational level. This may be done by Excel function, COUNTIF(list, "1") Alternatively, the Status data may be sorted and counted 2 Highlight Ed Level & Freq column data 3 Insert th

    Statistics Problems 2.35, 2.51: Electric insulators, dark chocolate bars

    See attached file. Please explain in detail, step by step. 2.35: The manufacturing company is Problem 2.34 also produces electric insulators. If the insulators break when in use, a short circuit is likely to occur. To test the strength of the insulators, desructive testing in high-powered labs is carried out to determine how

    Frequency distribution, mean, median, mode, range, standard deviation

    1. Students in a social work course received the following course grades: 83, 92, 92, 59, 72, 81, 27, 55, 70, 37, 62, 73, 71, 82, 83, 48, 96, 65, 66, 86, 79, 82, 95, 81, 96 o Create a frequency distribution for this data. o Compute the mean. o Determine the median. o Determine the mode. o Identify the range. o What is t

    Prepare a frequency distribution from the given data

    Prepare a frequency distribution from the data given below that describes how long it took a person to drive to work in a work week. Monday-15 minutes Tuesday-10 minutes Wednesday-25 minutes Thursday-9 minutes Friday-10 minutes Calculate the Standard Deviation of above data. Is this a normal distribution? What

    Organize the data into a Frequency Distribution

    The Quick Change Oil Company has a number of outlets in the Seattle area. The daily number of oil changes at the outlet in the past twenty days are: 65, 98, 55, 62, 79, 59, 51, 90, 72, 56 70, 62, 66, 80, 94, 79, 63, 73, 71, 85 The data is to be organized into a frequency distribution how many classes would you recommen

    Frequency distribution and relative frequency distribution

    How do I determine the frequency distribution and relative frequency distribution. Example is below. How do I get frequency and relative frequency? Number of patients served for the first 16 days Patients 24.0 - 25.5 -- frequency = 2, relative frequency = 0.125 Patients 25.5 - 27.0 --frequency = 4. relative frequency = 0.

    Relative frequency-Patient's weight and surgical recovery

    1. A medical research project examined the relationship between a subject's weight and recovery time from a surgical procedure, as shown in the table below. Underweight Normal weight Overweight Totals Less than 5 days 8 20 6 5 to 9 days 35 85 10 Over 9 days 18 45 37 Totals a. Use relative frequency to

    Constructing frequency distribution tables, histogram and curve, and key points

    This is a practice exam question for my stats course that I am taking. If you would be able to help me solve this question, and with some instructions, that would be fantastic. Following is the data on the 'Left -Ventricular-Ejection-Fraction' LVEF in percent of 30 diabetic patients with abnormal cardiac condition: 68 76 7


    1. The maximum number of seats in a sample of 13 sport utility vehicles are listed below. Find the mean, median, and mode of the data 8 10 11 11 8 9 7 7 7 7 7 7 8 Find the mode. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. A. The mode is _______ (Type