A doctor's office staff studied the waiting times for patients who arrive at the office with a request for emergency service. The following data with waiting times in minutes were collectedover a one-month period.17 11 14 565 16 12 8 8 10 12Use classes of 0-4, 5-9, and so on in the following.(a) Show the frequency and relative frequency distributions.WaitingTime0-45-910-1415-1920-24TotalsFrequencyWaiting TimeLess than or equal to 4(b) Show the cumulative frequency and cumulative relative frequency distributions.Less than or equal to 9Less than or equal to 14Less than or equal to 19RelativeFrequencyLess than or equal to 2422 89CumulativeFrequency14 17CumulativeRelativeFrequency(c) What proportion of patients needing emergency service wait 9 minutes or less?

Answered: A doctor's office staff studied the…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Similar questions

Construct one table (similar to Table 2-5) that includes relative frequencies based on the frequency distributions from Exercises 5 and 6, and then compare the ages of Oscar-winning actresses and actors. Are there notable differences?
The accompanying data represent the approximate population, in millions, of the 20 most populous cities in the world. Use these data to construct a frequency distribution with a first class of 7.0 -7.9. Fill in the missing classes and the frequency for each class below. Population (millions of people) 7.0 -7.9 □-□ 10.0 - 10.9 11.0-11.9 Number of Cities 13.5 11.5 10.1 8.3 7.7 13.4 11.3 10.1 8.2 7.6 13.3 10.8 9.5 8.2 7.6 13.3 10.5 9.2 7.7 7.2 20
On the basis of a population survey, there were 84.4 million males and 98.2 million females 25 years old or older in a certain country. The educational attainment of the males and females is shown in the accompanying table. Complete parts (a) through (d) below.
Use the cumulative frequency table on the left(top) to fill in the table on the right.(bottom) Classes Cumulative Frequency Under 10 7 Under 20 19 Under 30 38 Under 40 55 Under 50 60 Classes Frequency Relative Frequency 0-9 10-19 20-29 30-39 40-49
A recent survey of 1030 U.S. adults selected at random showed that 627 consider the occupation of firefighter to have very great prestige. Estimate the probability (to the nearest hundredth) that a U.S. adult selected at random thinks the occupation of firefighter has very great prestige.
The data represent the time, in minutes, spent reading a political blog in a day. Construct a frequency distribution using 5 classes. In the table, include the midpoints, relative frequencies, and cumulative frequencies. Which class has the greatest frequency and which has the least frequency? Complete the table, starting with the lowest class limit. (Simplify your answers.) Class Frequency Midpoint 11 19 13 12 Relative Frequency 1966 011 13 15 10 8 10 10 16 Cumulative Frequency 6729 U
A large company's human resources manager undertakes a research that examines the employment records of 500 employees for absenteeism over the previous year. The data is organised into a frequency distribution by the business researcher conducting the study to assist the human resources manager in analysing the data. This graphs show the frequency distribution. Class interval Frequency 0 – 1 218 2 – 3 207 4 – 5 56 6 – 7 11 8 – 9 8 List three specific uses of cumulative frequencies in business. Display a relative frequency histogram and relative frequency polygon for these data. Find mean, median, mode, variance and standard deviation for grouped data.

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