EP MATHEMATICS FOR THE TRADES
11th Edition
ISBN: 9780134758817
Author: SAUNDERS
Publisher: PEARSON CO
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Textbook Question
Chapter 12.3, Problem 14EE
Automotive Trades In testing the acceleration from 0 to 60 mph for a certain automobile, the following times (in seconds) resulted from a series of trials:
6.8, 6.9, 6.8, 6.7, 6.8, 6.6, 6.9, 7.0, 6.7, 6.8, 6.6, 6.7, 7.1, 6.9, 6.5
- (a) Calculate the mean and standard deviation of these times.
- (b) What range of times should the technician report so the interval would normally contain approximately 68% of the actual times?
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Chapter 12 Solutions
EP MATHEMATICS FOR THE TRADES
Ch. 12.1 - Solve: 0.82=x100Ch. 12.1 - Prob. 2LCCh. 12.1 - Automotive Trades The following bar graph shows...Ch. 12.1 - Trades Management The following graph shows the...Ch. 12.1 - General Interest The following double bar graph...Ch. 12.1 - General Interest The following stacked bar graph...Ch. 12.1 - Allied Health When Dr. Friedrich began working at...Ch. 12.1 - Automotive Trades The following line graph shows...Ch. 12.1 - Construction The following double-line graph...Ch. 12.1 - General Interest Study the circle graph at the top...
Ch. 12.1 - Prob. 9AECh. 12.1 - Allied Health An assistant at a pharmaceutical...Ch. 12.1 - Fire Protection Plot the following data as a bar...Ch. 12.1 - Transportation The following table lists the total...Ch. 12.1 - Metalworking Draw a bar graph from the following...Ch. 12.1 - Trades Management Plot the following data as a bar...Ch. 12.1 - Construction Plot the following data as a double...Ch. 12.1 - General Interest The following table shows the...Ch. 12.1 - Automotive Trades The following table shows the...Ch. 12.1 - Trades Management The following table shows the...Ch. 12.1 - General Interest The following table shows, by...Ch. 12.1 - Agriculture The following table shows the price...Ch. 12.1 - Allied Health The following table shows the...Ch. 12.1 - General Interest The following data show the U.S....Ch. 12.1 - Fire Protection The following data show the number...Ch. 12.1 - General Interest The following table shows the...Ch. 12.1 - Hydrology The following table shows the daily...Ch. 12.1 - Business and Finance Plot a double broken-line...Ch. 12.1 - Electrical Engineering Plot the following data as...Ch. 12.1 - Water/Wastewater Treatment The following table...Ch. 12.1 - Aviation An aircraft mechanic spends 12.5% of a...Ch. 12.1 - General Interest Recent surveys have shown that...Ch. 12.2 - Find the average of these numbers: 6, 8, 12, 14Ch. 12.2 - What number is halfway between 12 and 15?Ch. 12.2 - Find the mean, median, and mode for each set of...Ch. 12.2 - A. Find the mean, median, and mode for each set of...Ch. 12.2 - A. Find the mean, median, and mode for each set of...Ch. 12.2 - A. Find the mean, median, and mode for each set of...Ch. 12.2 - A. Find the mean, median, and mode for each set of...Ch. 12.2 - A. Find the mean, median, and mode for each set of...Ch. 12.2 - A. Find the mean, median, and mode for each set of...Ch. 12.2 - A. Find the mean, median, and mode for each set of...Ch. 12.2 - Construct an extended frequency distribution for...Ch. 12.2 - Construct an extended frequency distribution for...Ch. 12.2 - Aviation BF Goodrich produces brake pads for...Ch. 12.2 - General Trades The U.S. Department of Labor...Ch. 12.2 - Forestry The following table shows both the total...Ch. 12.2 - Water/Wastewater Treatment The seven-day mean of...Ch. 12.2 - Automotive Trades A mechanic has logged the...Ch. 12.2 - Forestry A forest ranger wishes to determine the...Ch. 12.2 - Hydrology The following table shows the monthly...Ch. 12.2 - Meteorology The National Weather Service provides...Ch. 12.2 - Automotive Trades The following table shows both...Ch. 12.2 - Hydrology The following table shows the daily...Ch. 12.2 - Allied Health The Apgar score is widely used to...Ch. 12.2 - Allied Health A pharmacist keeps careful track of...Ch. 12.2 - Prob. 13CECh. 12.2 - Prob. 14CECh. 12.3 - Calculate: 65 72.5Ch. 12.3 - Calculate: (2.5)2Ch. 12.3 - Prob. 1AECh. 12.3 - Prob. 2AECh. 12.3 - Prob. 3AECh. 12.3 - Calculate the range and the standard deviation for...Ch. 12.3 - Prob. 5AECh. 12.3 - Calculate the range and the standard deviation for...Ch. 12.3 - Prob. 7AECh. 12.3 - Prob. 8AECh. 12.3 - Prob. 1BECh. 12.3 - Prob. 2BECh. 12.3 - Prob. 3BECh. 12.3 - Calculate the standard deviation of the grouped...Ch. 12.3 - Prob. 1CECh. 12.3 - For each set of data, (a) calculate the standard...Ch. 12.3 - Prob. 1DECh. 12.3 - For each set of data, (a) calculate the standard...Ch. 12.3 - Prob. 1EECh. 12.3 - Prob. 2EECh. 12.3 - Prob. 3EECh. 12.3 - Prob. 4EECh. 12.3 - Prob. 5EECh. 12.3 - Prob. 6EECh. 12.3 - Prob. 7EECh. 12.3 - Prob. 8EECh. 12.3 - Prob. 9EECh. 12.3 - Prob. 10EECh. 12.3 - Prob. 11EECh. 12.3 - Prob. 12EECh. 12.3 - Prob. 13EECh. 12.3 - Automotive Trades In testing the acceleration from...Ch. 12 - Read bar graphs, line graphs, and circle graphs....Ch. 12 - Prob. 2PCh. 12 - Prob. 3PCh. 12 - Prob. 4PCh. 12 - Prob. 5PCh. 12 - Prob. 6PCh. 12 - Graph I Electrical Trades In general, as amps...Ch. 12 - Graph I Electrical Trades What is the minimum size...Ch. 12 - Graph I Electrical Trades What is the minimum wire...Ch. 12 - Prob. 4APSCh. 12 - Prob. 5APSCh. 12 - How many grams of fat are contained in a Peanut...Ch. 12 - How many grams of sugar are contained in a...Ch. 12 - How many grams of fat would you consume if you ate...Ch. 12 - How many grams of sugar would you consume if you...Ch. 12 - How many more grams of fat are in two Caramel...Ch. 12 - How many more grams of sugar are in three Peanut...Ch. 12 - Which cookie appears to be the healthiest (as...Ch. 12 - Which cookie appears to be the least healthy (as...Ch. 12 - By what percent does the amount of fat in a...Ch. 12 - By what percent does the amount of sugar in a...Ch. 12 - Retail Merchandising A small computer store is...Ch. 12 - Retail Merchandising A small computer store is...Ch. 12 - Retail Merchandising A small computer store is...Ch. 12 - Retail Merchandising A small computer store is...Ch. 12 - In September, what was the ratio of computer...Ch. 12 - Retail Merchandising A small computer store is...Ch. 12 - Retail Merchandising A small computer store is...Ch. 12 - Retail Merchandising A small computer store is...Ch. 12 - Graph IV Automotive Trades What was the cost per...Ch. 12 - Graph IV Automotive Trades When was the next time...Ch. 12 - Graph IV Automotive Trades During which time...Ch. 12 - Graph IV Automotive Trades During which time...Ch. 12 - Graph IV Automotive Trades What was the difference...Ch. 12 - Graph IV Automotive Trades By what percent did the...Ch. 12 - Graph IV Automotive Trades How much more did it...Ch. 12 - Graph V Business and Finance What was the actual...Ch. 12 - Graph V Business and Finance What was the...Ch. 12 - Graph V Business and Finance During which month...Ch. 12 - Graph V Business and Finance During which month...Ch. 12 - Graph V Business and Finance During which month...Ch. 12 - Graph V Business and Finance During which month...Ch. 12 - Graph V Business and Finance During which months...Ch. 12 - Graph V Business and Finance During which month...Ch. 12 - Graph VI Metalworking What percent of marine...Ch. 12 - Graph VI Metalworking What percent of this alloy...Ch. 12 - Graph VI Metalworking Without measuring, calculate...Ch. 12 - Graph VI Metalworking How many ounces of zinc are...Ch. 12 - Graph VI Metalworking How many grams of bismuth...Ch. 12 - Prob. 1BPSCh. 12 - General Interest The following table shows the...Ch. 12 - Prob. 3BPSCh. 12 - Prob. 4BPSCh. 12 - Prob. 5BPSCh. 12 - Prob. 6BPSCh. 12 - Metalworking Construct a circle graph based on the...Ch. 12 - Fire Protection Construct a circle graph based on...Ch. 12 - General Interest Students in a community college...Ch. 12 - C. Find the mean, median, and mode for each set of...Ch. 12 - C. Find the mean, median, and mode for each set of...Ch. 12 - C. Find the mean, median, and mode for each set of...Ch. 12 - C. Find the mean, median, and mode for each set of...Ch. 12 - Prob. 5CPSCh. 12 - C. Find the mean, median, and mode for each set of...Ch. 12 - D. Calculate (a) the range and (b) the standard...Ch. 12 - D. Calculate (a) the range and (b) the standard...Ch. 12 - Prob. 3DPSCh. 12 - Prob. 4DPSCh. 12 - E. Calculate the mean and the standard deviation...Ch. 12 - Prob. 2EPSCh. 12 - Prob. 1FPSCh. 12 - Meteorology The following table shows the average...Ch. 12 - Agriculture The following data from the United...Ch. 12 - Industrial Technology The Energy Information...Ch. 12 - Police Science To determine the speed that a...Ch. 12 - Agriculture The following list of numbers...Ch. 12 - Sheet Metal Trades The following data represent...Ch. 12 - Prob. 8FPSCh. 12 - Prob. 9FPS
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