A tetrahedral (four-sided) die has written on it the numbers 1, 2, 3 and 4. The die is rolledmany times and the scores are noted. The table below shows the resulting frequencydistribution.Score1234Frequency18y22The die was rolled a total of 100 times.(a)Write down an equation, in terms of x and y, for the total number of times the diewas rolled.The mean score is 2.71.(b)Using the mean score, write down a second equation in terms of x and y.(c) Find the value of x and of y.

Answered: Image /qna-images/answer/047bac94-59a0-4667-b48c-45dd730a3431.jpg

Answered: A tetrahedral (four-sided) die has…

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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3:34 İ. Construct a simple frequency distribution for grouped data; display your findings in a table (number of intervals should be 5) ii. Add a column to your table with the cumulative frequency (bottom up). iii. Add a column to your table with the relative frequency. iv. Add a column to your table with the relative percent. v. Add a column to your table with the cumulative percent. vi. Construct a histogram that distributes the intervals along the horizontal scale (x-axis) and list the frequency of scores in each interval on the vertical scale vii. Construct an Ogive for this data. Grade 95 94 65 77 69 45 54 88 75 39 15 56 63 93 84 70 63 52 79 81 87 69 99 48 65 83 44 5G 91 35 57 60
I. Complete the frequency distribution below. Grades 95-99 90-94 85-89 80-84 75-79 II. Complete the data below. COMPUT Q3² D₂ Grades of G10- NEPTUNE in Filipino frequency Class boundaries 10 16 10 Less than cumulative frequency INTERPRETATION
Use the Histogram tool to develop a frequency distribution and histogram for the number of months as a customer of the bank in the data below. Compute the relative and cumulative relative frequencies and use a line chart to construct an ogive. Complete the frequency distribution for the months as a customer, and compute the relative and cumulative relative frequencies. (Type integers or decimals rounded to three decimal places as needed.) Bins Frequency Relative Frequency Cumulative Relative Frequency 10 enter your response here enter your response here enter your response here 20 enter your response here enter your response here enter your response here 30 enter your response here enter your response here enter your response here 40 enter your response here enter your response here enter your response here 50 enter your response here enter your response here enter your…
CORStruct a frequency distribution for the g class has the greatest frequency and whic
Construct a frequency distribution for the data using five classes. Describe the shape of the distribution. The ages of dishwashers (in years) in 20 randomly selected households are shown below. 9 13 5 15 12 6 4 9 11 1 7 898 7 6 8 8 21 OA. bell shaped OB. skewed to the left OC. skewed to the right O D. uniform
Use the display of data to find the mean, median, mode, and midrange. Frequency 10- 84 6- 6 + ~ 0- Score 10 11 12 13 14 The mean of the data is. (Round to the nearest tenth as needed.)
Find the mean of the data summarized in the given frequency distribution. Compare the computed mean to the actual mean of 57.4 degrees. The mean of the frequency distribution is (Round to the nearest tenth as needed.)
Thao earned the following scores on her six management exams last semester. 79, 79, 42, 88, 79, 93 Ф Find the mean, the median, and the mode for Thao's scores. The mean for Thao's scores is (Type an integer or a decimal. Round to the nearest hundredth as needed.)
1:15 (a) Which variable is the explanatory variable? OA. One of the biggest factors in determining the value of a home is the square footage. The accompanying data represent the square footage and selling price (in thousands of dollars) for a random sample of homes for sale in a certain region. Complete parts (a) through (h) below. Click the icon to view the housing data. Square Footage Selling Price (b) Draw a scatter diagram of the data. Choose the correct scatter diagram below. Ay 4500- 000 1000 mylab.pearson.com/ + ® : 3 4500 Data Table Q Square Footage, x 2148 3231 1177 1988 3064 2735 4146 2215 2625 1629 1773 3887 Print ||| OB. r= 0.899 (Round to three decimal places as needed.) = AX 4500- 1000+++ 150 750 Q (c) Determine the linear correlation coefficient between square footage and asking price. Done Ay 750- Vo) 1 LTE2 150- O 1000 Selling Price ($000s), y D 371.1 382.2 197.6 339.9 614.9 364.7 632.7 377.7 427.5 285.9 268.9 701.4 4500 .... .... Q X D. Ay 750- 41% 150+ 1000 4500
The numbers of courses taught per semester by a random sample of university professors are shown in the histogram. Make a frequency distribution for the data. Then use the table to estimate the sample mean and the sample standard deviation of the data set. Make a frequency distribution for the data. X 1 3 f Number of professors 25- 20- 15- 10- 4 20 23 15 1 2 3 4 Number of courses taught per semester
Use the data in the following table, which lists carbon dioxide concentrations (in parts per million) for each year from 1960 to 2009, with projected values used for the last four years. After finding the values of the mean and range for each decade, find the values of x, and R. Also find the values of LCL and UCL for an R chart, and find the values of LCL and UCL for an x chart. 1960s 318.4 319.5 321.8 322.9 324.8 325.4 326.9 328.5 330.3 331.4 1970s 333.4 334.6 335.5 337.1 339.3 340.4 341.4 343.1 344.7 346.5 1980s 348.1 348.8 351.2 352.1 353.8 355.4 356.9 358.5 359.8 360.6 1990s 361.9 363.6 365.8 366.7 368.6 369.2 371.7 372.4 373.5 375.2 2000s 377.6 378.7 379.6 381.8 382.8 384.2 386.3 387.6 388.7 390.5 x=enter your response here (Round to three decimal places as needed.) Part 2 R=enter your response here (Round to two decimal places as needed.) Compute the values of LCL and UCL for an R chart. LCL=enter your response here, UCL=enter your response here (Round to…

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