The paper "Study on the Life Distribution of Microdrills" (J. of Engr. Manufacture, 2002: 301-305) reported the following observations, listed in increasing order, on drill lifetime (number of holes that a drill machines before it breaks) when holes were drilled in a certain brass alloy 11 14 20 23 31 36 39 44 47 50 59 61 65 67 68 71 74 76 78 79 81 84 85 89 91 93 96 99 101 104 105 105 112 118 123 136 139 141 148 158 161 168 184 206 248 263 289 322 388 513 i. Construct the frequency table using the following classes: 0-50, 51-100, etc. ii. What is the range of the data? iii. In a tabular Form, calculate the a. Class Mark. b. Relative Frequency c. Cumulative Frequency d. Relative Cumulative Frequency iv. Use the table, in (i) to draw the following graph: a. Histogram b. Frequency Polygon c. Cumulative Frequency curve (or Ogive). Use the graph to estimate the semi-interquartile range d. Bоxplots Calculate the following measures of Location: a. Mean v. b. Мode c. Median Calculate the following measures of variability a. Variance b. Standard deviation vi.

The paper "Study on the Life Distribution of Microdrills" (J. of Engr. Manufacture, 2002: 301-305) reported the following observations, listed in increasing order, on drill lifetime (number of holes that a drill machines before it breaks) when holes were drilled in a certain brass alloy 11 14 20 23 31 36 39 44 47 50 59 61 65 67 68 71 74 76 78 79 81 84 85 89 91 93 96 99 101 104 105 105 112 118 123 136 139 141 148 158 161 168 184 206 248 263 289 322 388 513 i. Construct the frequency table using the following classes: 0-50, 51-100, etc. ii. What is the range of the data? iii. In a tabular Form, calculate the a. Class Mark. b. Relative Frequency c. Cumulative Frequency d. Relative Cumulative Frequency iv. Use the table, in (i) to draw the following graph: a. Histogram b. Frequency Polygon c. Cumulative Frequency curve (or Ogive). Use the graph to estimate the semi-interquartile range d. Bоxplots Calculate the following measures of Location: a. Mean v. b. Мode c. Median Calculate the following measures of variability a. Variance b. Standard deviation vi.

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Description: The paper "Study on the Life Distribution of Microdrills" (J. of Engr. Manufacture,2002: 301–305) reported the following observations, listed in increasing order, ondrill lifetime (number of holes that a drill machines before it breaks) when holeswe

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Water availability is of prime importance in the life cycle of most reptiles. To determine the rate of evaporative water loss of a certain species of lizard at a particular desert site, 34 such lizards were randomly collected, weighed and placed under the appropriate experimental conditions. After 24 hours, each lizard was removed, weighed, and its total water loss was calculated by subtracting its body weight after treatment from its initial body weight. Previous studies have shown that the relative frequency distribution of water loss for this species of lizard has a mean of 3.1 grams and a s.d. of 0.8 gram b) What is the probability that x is less than 2.7 grams?