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Frequency Distribution

Frequency distribution and measures of variation

Pandas: The size of the home ranges (in square kilometers) of several pandas were surveyed over a year's time, with the following results. Home Range Frequency .1-.5 11 .6-1.0 12 1.1-1.5 7 1.6-2.0 6 2.1-2.5 2 2.6-3.0 1 3.1-3.5 1 Sketch a histogram and frequ

Basic Statistics and Probability

Question 2 Construct a frequency distribution (class, tally and frequency) for the data set using the indicated number of classes. In the table, include the midpoint, relative frequencies and cumulative frequencies. Also construct a relative frequency histogram. Number of class: 5 Data set: 14 10 6 4 19 20 11 5 12 18 5 10 13 2

Multiple Choice Questions

16. Given this frequency distribution, the random number 0.61 would be interpreted as a demand of: a) 0 b) 1 c) 2 d) 3 17. A graduate research assistant "moonlights" at the short order counter in the student union snack bar in the evenings. He is considering asking for help taking or

The Precision Scientific Instrument Company

The Precision Scientific Instrument Company manufactures thermometers which are supposed to give readings of 0o C at the freezing point of water. Tests on a large sample of these thermometers reveal that at the freezing point of water, some give readings below 0o C (denoted by negative numbers) and some give readings above 0o C

Distribution of samples

The Appliance Center has six sales representatives at their North Jacksonville outlet. Listed below is the number of refrigerators sold by each last month. Sales Representative Number Sold Zina Craft 54 Woon Junge 50 Ernie DeBrul

Assist w/problems

1. Each raw datum is the monthly rent in dollars for a one-bedroom apartment in 20 different complexes. 200 185 325 320 180 225 210 235 225 310 290 250 285 190 235 245 205 230 260 290 Suppose you decide to group the given raw data into a frequency table with eight classes. What would your class width be? $18

Approximate the Mean of the Group Data

Approximate the mean of the grouped data. The age distribution of students in a statistics class. Age frequency 20-29 23 30-39 24 40-49 23 50-59 19 60-69 8 What is the mean age of the students based on this given frequency distribution? Round to the

Frequency distribution

Construct a frequency distribution for the data set using the indicated number of classes. Determine which class has the greatest frequency and which has the lease frequency. Number of classes: 5 12 26 55 15 20 88 76 24 88 68 58 32 31 45 76 29 31 0 38 81 22 56 45 39 37 65 Which class has the greatest frequency? a) 19

Frequency Distribution Statistics

9.3 5.3 6.3 8.8 6.5 0.6 5.2 6.6 9.3 4.3 6.3 2.1 2.7 0.4 3.7 3.3 1.1 2.7 6.7 6.5 4.3 9.7 7.7 5.2 1.7 8.5 4.2 5.5 5.1 5.6 5.4 4.8 2.1 10.1 1.3 5.6 2.4 2.4 4.7 1.7 2 6.7 1.1 6.7 2.2 2.6 9.8 6.4 4.9 5.2 4.5 9.3 7.9 4.6 4.3 4.5 9.2 8.5 6 8.1 Organize the data into frequency distribution. How many classes w

Class intervals, limits, and frequency distribution

The following data give the weekly amounts spent on groceries for a sample of households. $271 $363 $159 $76 $227 $337 $295 $319 $250 279 205 279 266 199 177 162 232 303 192 181 321 309 246 278 50 41 335 116 100 151 240 474 297 170 188 320 429 294 570 342 279 235 434 123 325 a. How many classes do you recommend? b. Wh

Statistics: factors in the process of distribution

Problem 13.5 A mail-order catalog business selling personal computer supplies, software, and hardware maintains a centralized warehouse. Management is currently examining the process of distribution from the warehouse and wants to study the factors that affect warehouse distribution costs. Currently, a small handling fee is adde

Hourly wages, frequency

The following chart shows the hourly wages of a sample of certified welders in the Atlanta, Georgia, area. (see attached) How many welders were studied? What is the class interval? About how many welders earn less than $10.00 per hour? About 75 percent of the welders make less than what amount? Ten of the welders s

The Quick Change Oil Company

The Quick Change Oil Company has a number of outlets in the metropolitan Seattle area. The numbers of oil changes at the Oak Street outlet in the past 20 days are: (see attached file for chart) The data is to be organized into a frequency distribution. 1. How many classes would you recommend? 2. What class interva

Lower Limit, Classes and Intervals

The following data give the weekly amounts spent on groceries for a sample of households. $271 $363 $159 $ 76 $227 $337 $295 $319 $250 279 205 279 266 199 177 162 232 303 192 181 321 309 246 278 50 41 335 116 100 151 240 474 297 170

The manufacturer of a computer terminal reports...

The manufacturer of a computer terminal reports in its advertising that the mean life of the terminal, under normal use, is 6 years, with a standard deviation of 1.4 years. (Assume these are population values.) A sample of 90 units sold 10 years ago revealed the following distribution of the lengths of life. At the .05 signif

Frequency Distibution Problems

30.Determine the estimated mean 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

Finding the estimated mean

30) Determine the estimated mean 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

Frequency Polygon

Here are the shopping times (in minutes) for a sample of 21 shoppers at a particular grocery store: 26 23 44 41 38 35 31 28 25 22 43 40 37 34 31 43 43 39 39 36 36 Draw the frequency polygon for these data using an initial class boundary of 21.5, an ending class boundary of 46.5 and 5 classes. Note that you can add or remove

Distributions - Relative Frequency Table

Part I: Find 50 numbers in documents that are available to the general public (newspapers, magazines, etc.) and record the first nonzero digit. Summarize the results in the relative frequency table on the next page (be sure to use the column "first digits"). Identify the source(s) of your numbers here. Please see attached.

RESEARCH METHOD &STATISTICS

I'm not sure you can help me, but here is the problems that I have to have answered by next week. I don't have the SPSS DATA yet, so you will have to respond in general terms. The textbook we are using is Research Methods &Statistics 7th edition by Healey. And we are supposed to use the software to solve these problems SPSS 12.0

Describing distributions analysis

Perception of EEO in Division Stem-and-Leaf Plot {see attachment for distributions} Discussion The data is based on five questions about EEO with the Columbus Fire Division that were asked on potential job applicants. Each item was a statement about EEO within the Fire Division Response were made on a five point scale fro

Estimation Frequency Distribution

In a roadside interview survey, a random sample of all vehicles crossing each of a set of intersections is taken. Assume that every trip made in the area of interest over the duration of the study is equally likely to be sampled by this method. One question asked in survey concerns the total number of home-based round trips made

Frequency Distributions : Newspaper Readership

20. A certain town of population size 100,000 has 3 news papers: I, II, and III. The proportions of townspeople who read these papers are as follows: I: 10% I and II: 8% I and II and III: 1% II: 30% I and III: 2% III: 5% II and III: 4% (The list tells us, for instance, that 80

General Statistics

1. A statistic is a measurement of some characteristic of a sample and a _________ is a measurement of some characteristic of a population. 2. Idenitify the following as discrete of continuous data: A) Weights of grizzly bears: ________ B) Number of grizzly bears in the fifty states: ________ C) Radar indicating that Mr. N