Exam 11: Graphs
Exam 1: Arithmetic, Calculators, and Problem Solving306 Questions
Exam 2: Sets of Numbers238 Questions
Exam 3: Introduction to Algebra286 Questions
Exam 4: Percents and Problem Solving166 Questions
Exam 5: Introduction to Geometry157 Questions
Exam 6: Measurement and Problem Solving236 Questions
Exam 7: Applications of Percent244 Questions
Exam 8: Sets and Logic270 Questions
Exam 9: Probability163 Questions
Exam 10: Statistics41 Questions
Exam 11: Graphs350 Questions
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Suppose that people's heights (in centimeters) are normally distributed, with a mean of 170 and a standard deviation of 5. We find the heights of 100 people. How many would you expect to be taller than 165 cm? Please, round your answer to the nearest integer.
__________ people
(Short Answer)
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Suppose that the 1999 monthly cost for health care for an employee and two dependents is given in the following table. ">
Provider Cost Maxicare \ 425.02 Cigna \ 429.03 Health Net \ 434.87 Pacific Care \ 444.83 Health Plan of the Redwoods \ 448.32 Kaiser \ 454.11 Aetna U.S. Healthcare \ 457.33 Blue Shield HMO \ 460.45 Omni Healthcare \ 469.25 Lifeguard \ 474.92 What is the mode?
(Multiple Choice)
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In plotting a point , the y -component is always __________.
(Multiple Choice)
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Find the range and mean of the data set. range: __________ mean: __________
(Short Answer)
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Find the class ranking. Round your answer to the nearest whole number, if necessary. 74th percentile out of 41
(Multiple Choice)
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Consider a class of examination scores. What is the percentile rank of a score of ? Round your answer to the nearest whole percentile, if necessary.
(Multiple Choice)
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How many points lie on a line?
__________ (Answer one , two or infinite )
How many points do you need to plot in order to determine a line?
__________ (Answer one , two or infinite )
(Short Answer)
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Find the three measures of central tendency (the mean, median, and mode).
(Multiple Choice)
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Consider the following salaries for the executives of a certain company.
cellpadding ="0 " cellspacing ="0 " width ="63\% " border="0"> Position Salary President \ 250,000 1st VP \ 120,000 2nd VP \ 110,000 Supervising manager \ 50,000 Accounting manager \ 50,000 Personnel manager \ 50,000 Department manager \ 28,000 Department manager \ 28,000 What is the mode? If there is more than one mode, answer bimodal . $ __________
(Short Answer)
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Plot five points, each of which has as the second component. Connect the plotted points. Which graph could be a correct graph?
(Multiple Choice)
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Choose the correct set of points that prepares the graph of the equation .
(Multiple Choice)
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Suppose that the annual rainfall in Ferndale, California, is known to be normally distributed, with a mean of 39.5 inches and a standard deviation of 3.5 inches. About 2.3% of the time, the annual rainfall will exceed how many inches?
(Multiple Choice)
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Suppose that people's heights (in centimeters) are normally distributed, with a mean of 170 and a standard deviation of 5. What is the probability that a person selected at random is taller than 175 cm? Please, round your answer to three decimal places, if necessary.
(Multiple Choice)
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The salaries of employees of the Moe D. Lawn Landscaping Company are:
cellpadding="0" cellspacing ="0" width ="52\%" border ="0"> Salary Frequency \ 23,000 1 \ 27,000 5 \ 31,000 3 \ 44,000 5 Find the variance rounded to the nearest thousand dollars and the standard deviation rounded to the nearest dollar. variance: __________ standard deviation: __________
(Short Answer)
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