A magazine published data on the best small firms in a certain year. These were firms which had been publicly traded for at least a year, have a stock price of at least $5 per share, and have reported annual revenue between $5 million and $1 billion. Thtable below shows the ages of the chiefexecutive officers for the first 66 ranked firms.AgeFrequencyRelative FrequencyCumulative RelativeFrequency40-4445-4950-5455-5960-641065-69 670-74 1(a) What is the frequency for CEO ages between (but not including) 54 and 65? (Enter your answer as a whole number.)22(b) What percentage of CEOS are 65 years or older? (Round your answer to the nearest whole number.)(c) What is the relative frequency of ages under 50? (Round your answer to two decimal places.)0.29(d) What is the cumulative relative frequency for CEOS younger than 55? (Round your answer to two decimal places.)0.59

We have given that the relative frequency table represents the CEOs ages for the first 66 ranked…

Answered: 55-59 12 60-64 10 65-69 6 70-74 1 (a)…

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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220 people are asked how many siblings they have? # of Siblings Frequency Relative Frequency Cumulative Frequency 0 39 0.1773 39 1 51 90 2 44 0.2 134 3 0.2227 183 4 37 0.1682 a. Complete the table (Use 4 decimal places when applicable) b. What percent of the people have exactly three siblings? %
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Question The frequency table below shows the ages of the students in a psychology lecture hall. Complete the Relative Frequency column of the table. Do not round. Provide your answer below: Relative Frequency Age Frequency 17 18 18 0.15 19 27 20 30 0.25 21 21 0.175 0.125 22 15
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ZOOM + 2. Researchers studying acid rain recorded the pH level for a sample of 26 water sources in Pennsylvania. The sorted list of the data (some values have been obscured), the histogram of the data, and some other statistics are below. Histogram of pH levels Sort (pH) Frequency 10 10- 4.12 4.12 ?? ?? 4.29 ?? 4.31 4.39 4.39 4.40 4.41 4.45 4.52 4.56 4.57 4.60 ?? ?? 4.73 ?? 5.08 5.29 5.51 5.62 5.67 5.78 Summary statistics: Col n Min Max Q1 pH Q3 26 4.12 5.78 4.31 4.82 a) Find the median pH level. Carefully show your work. b) Considering your answer to part a) and the histogram, which would be the best choice for the sample mean pH level (4.68, 4.56, or 4.00 units)? Explain. c) Find the Range of the pH levels. d) Find the IQR of the pH levels 1 pH 3. The following numbers are a sample of ten of my golf scores from 2020. In golf the “units" are technically called "strokes". Find my mean score and the standard deviation of my scores. 98, 94, 88, 90, 86, 92, 86, 85, 84, 87

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