The heights in feet above sea level of the major active volcanoes in Alaska are given here. Construct a frequency distribution for the data using 10 classes.4,265 3,545 4,025 7,050 11,4133,490 5,370 4,885 5,030 6,8304,450 5,775 3,945 7,545 8,4503,995 10,140 6,050 10,265 6,965150 8,185 7,295 2,015 5,0555,315 2,945 6,720 3,465 1,9802,560 4,450 2,7599,4307,985 7,540 3,540 11,0705,710885 8,960 7,015Source: The Universal AlmanacPart: 0/ 3Part 1 of 3feet.To construct ten classes, the range for each class (or the class width) should beRound your answer to the next whole number.

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Answered: The heights in feet above sea level of…

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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The following table shows the square footage of houses in an area that sold recently along with the selling price. Sq. Ft. Price 2096, 295000, 3160, 338000, 2320, 265000, 3150, 365000, 2760, 330000, 3650, 412000, 2125, 320000, 3085, 342000, 4750, 485000, 2100, 320000, 3100, 316000, 2240, 321000, 3300, 347000, 2800, 350000, 2825, 330000, 3275, 420000 1. Find the equation of the regression line (line of best fit). 2. Determine if there is a strong linear correlation. 3. If there is a strong linear correlation predict the selling price of a 3333 sq. ft. home
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Is a new method of teaching reading to first graders (Method B) more effective than the method now in use (Method A)? You design a matched pairs experiment to answer this question. You form 20 pairs of first graders, with two children in each pair carefully matched by IQ, socioeconomic status, and reading-readiness score. You assign at random one student from each pair to Method A. The other student in the pair is taught by Method B. At the end of the first grade, all the children take a test to determine their reading skill. Assume that the higher the score on this test, the more proficient the student is at reading. Let p stand for the proportion of all possible matched pairs of children for which the child taught by Method B has the higher score. Your hypotheses are Ho: p = 0.5 (no difference in effectiveness) Ha:p > 0.5 (Method B is more effective) 12 = 0.6. 20 The result of your experiment is that Method B gave a higher score in 12 of the 20 pairs, or p If Ho is true, the 20 pairs…
Answer ASAp. Show complete solution. Assume that the following frequency distribution table shows the scores of Grade 11-Stem A in Business Math Scores Frequency 70-74 12 75-79 11 80-84 10 85-89 9 90-94 8 Total 50 a) Construct a frequency histogram and frequency Polygon b) What conclusion can you derive from the table?
(b) Determine and interpret the interquartile range. The interquartile range is ______ crimes per 100,000 population.
If the DIB of the tree is 24" and the bark thickness is 0.75", what is the DOB? O 24.75" O 25" O 23.25" O 25.5"
Use the frequency histogram to estimate the least and greatest frequency. Figure 1. Salary (in thousands of Dollars) 323742475257620100200300Frequency Histogram A. least: 50, greatest: 200 B. least 110, greatest: 300 C. least: 20, greatest: 270 D. least 32, greatest: 62
5) A marine biologist records a frequency list of the lengths (L), measured to the nearest centimeter, of 100 mackerel (fish). The results are given in the following table a) Complete the table with the cumulative frequencyb) Draw the cumulative frequency diagram (use the upper limit as abscissa, use the grid) c) Find the median of the lengths of the fish. d) Calculate the interquartile range e) What percentage of the fish is longer than 39 cm? f) If it is decided to sell 20% in the local market, taking into account the smallest fish, what is the length of this group. g) The largest are sold to important Supermarkets, of which 45% are chosen, so what is the length of the fish sold? h) Estimate the standard deviation i) How many fish are two standard deviations above the mean? j) The company must pay a fine if more than 10% of the catch is less than 30 cm, calculate and decide if the company must pay such a fine
Given the stem-and-leaf diagram. Answer the following questions: • The total frequency all stems Observations of the stem that has largest frequency Stem-and-leaf of C1 N - 82 Leaf Unit - 0.10 1 4 84 33 4 85 86 777 13 87 456789 24 88 89 23334556679 0233678899 90 0111344456789 0001112256688 22236777 023347 (13) 35 91 22 92 14 93 8 94 2247 95 4 96 97 15 2 2 98 8 1. 99 1 100 3 Q1 88.575 Median Q3 90.400 92.200 a. Total frequency = 18 Observations on the largest frequency: 90.0, 90.1, 90.1, 90.1, 90.3, 90.4, 90.4, 90.4, 90.5, 90.6, 90.7, 90.8, 90.9 b. Total frequency cannot be determined by the present diagram Observations on the largest frequency: 90.0, 90.1, 90.1, 90.1, 90.3, 90.4, 90.4, 90.4, 90.5, 90.6, 90.7, 90.8, 90.9 O.Total frequency = 82 Observations on the largest frequency: 90.0, 90.1, 90.1, 90.1, 90.3, 90.4, 90.4, 90.4, 90.5, 90.6, 90.7, 90.8, 90.9 O d. Total frequency = 82 Observations on the largest frequency: 87.4, 87.5, 87.6, 87.7, 87.8, 87.9 34 5 678 9012NM 435 2
The names of major rivers in Canada are listed according to their length. O Numerical O Nominal OWeakly Ordinal OStrongly Ordinal

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