A club has 100 members and their ages are shown in the table below: Marks 16-25 26-35 36-45 46-55 56-65 32 36 17 Number 8
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Construct a cumulative frequency table and draw (on graph paper) a cumulative frequency graph.
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- The following data report total, monthly U.S. book-store sales in millions of dollars from January 2016 to March 2019. (Go to https://www.census.gov/retail/index.html#mrts, find “Monthly Retail Trade Report,” then select “Time Series/Trend Charts” to find the data for the total U.S. bookstore sales.)YearMonth 2016 2017 2018 2019January $1,468 $1,386 $1,271 $1,144February 727 691 709 666March 719 707 734 685April 709 729 710May 778 781 787June 713 704 727July 687 669 701August 1,524 1,374 1,364September 1,064 997 986October 715 689 741November 742 703 768December 1,256 1,157 1,259 c. Which forecasting model is appropriate based on the data for the total U.S. bookstore sales?Appropriate model____________d. Evaluate a seasonally adjusted trend…The following data report total, monthly U.S. book-store sales in millions of dollars from January 2016 to March 2019. (Go to https://www.census.gov/retail/index.html#mrts, find “Monthly Retail Trade Report,” then select “Time Series/Trend Charts” to find the data for the total U.S. bookstore sales.)YearMonth 2016 2017 2018 2019January $1,468 $1,386 $1,271 $1,144February 727 691 709 666March 719 707 734 685April 709 729 710May 778 781 787June 713 704 727July 687 669 701August 1,524 1,374 1,364September 1,064 997 986October 715 689 741November 742 703 768December 1,256 1,157 1,259 g. Predict book sales for the next 9 months. (Round your answers to 4 decimal places.)Year Month Forecast…The data in the table represent the tuition for all 2-year community colleges in a region in 2014-2015. (a) Complete the cumulative frequency distribution. (a) Construct a cumulative frequency distribution. (b) Construct a cumulative relative frequency distribution. (c) Draw a frequency polygon. (d) Draw a relative frequency ogive. Tuition Cumulative (dollars) Frequency 775-799 800-824 Tuition Number of (dollars) Community Colleges 825-849 775-799 20 850-874 800-824 65 875-899 825-849 14 850-874 900-924 875-899 925-949 900-924 950-974 925-949 950-974 1 (b) Complete the cumulative relative frequency distribution. Tuition Cumulative Relative (dollars) Frequency 775-799 800-824 825-849 850-874 875-899 900-924 925-949 950-974 (Round to three decimal places as needed.)
- 1. The distance travelled (in kilometres) by a courier service motorcycle on 40 trips were recorded by the driver. 24 19 21 27 20 17 17 32 22 26 18 13 23 30 10 13 18 22 34 16 18 23 15 19 28 25 25 20 17 15 10 11 12 13 14 09 08 07 06 05 a) Using this equation 2k 2 n, to prepare the following: i) An absolute frequency distribution. Show the table i) A relative frequency distribution. Show the table iii) Estimate the mean, median and modal level of the trips made iv) Estimate the variance. ||||Find the mean median mode by looking at the 3 graphsThe age distribution of workers in a factor is as follows: Marks 16-25 26-35 36-45 46-55 56-65 Number of students 12 29 32 17 10 (a) What is the class width? (b) What is the lower boundary of the modal class? (c) Construct a cumulative frequency table and draw (on graph paper) a cumulative frequency graph. (d) Use your cumulative frequency diagram to estimate (i) the median value (ii) the inter-quartile range for the given data.
- From 10 October 2021 to 20 October 2021, the number of people in Singapore who had a booster shot is shown in the graph below. In October, the population mean for singaporians who received booster shots was 10253.87. Date Daily booster shot 10/10/2021 978 11/10/2021 1016 12/10/2021 1042 13/10/2021 3203 14/10/2021 6499 15/10/2021 16827 16/10/2021 20412 17/10/2021 23132 18/10/2021 32350 19/10/2021 33751 20/10/2021 51025 What is the main purpose of conducting hypothesis testing? Test at 10% significance level of the claim that the average people have taken booster shot is more than or equal to 87. Make conclusion based on your answer. Test at 5% significance level of the claim that there no difference of the average people has taken booster shot. Make conclusion based on your answer.Calculate arithmetic mean by the short-cut method using frequency distribution.Over the past several decades, the United Nations has kept records of the number of births worldwide, categorized by the age of the mother. A frequency table displaying this data for the years 1960 to 1970 is shown. Consider the class consisting of mothers between the ages of 40 and 45 years, who gave birth to an estimated 52,335,000 children worldwide between 1960 and 1970. Age of mother,in years Estimated number of occurrences,in thousands 15 – 20 125,075 20 – 25 312,055 25 – 30 300,458 30 – 35 217,581 35 – 40 131,236 40 – 45 52,335 45 – 50 10,577 Over the past several decades, the United Nations has kept records of the number of births worldwide, categorized by the age of the mother. A frequency table displaying this data for the years 1960 to 1970 is shown. Consider the class consisting of mothers between the ages of 40 and 45 years, who gave birth to an estimated 52,335,000 children worldwide between 1960 and 1970. What is the lower limit of this class?…
- According to dmbalmanac.com, the breakdown of albums from which Dave Matthews sang at his 'Solo at Home' tour during the Coronavirus are depicted in the frequency distribution below. What percent of his songs were from 'Big Whiskey and the GrooGrux King'? Dave Matthews songs Albums Unreleased 20.5% Dave Matthews - Some Devil 14.3% Busted Stuff 8.0% Cover Songs 8.0% Away from the World 8.0% Under the Table and Dreaming 7.1% Come Tomorrow 7.1% Crash 6.3% Before These Crowded Streets 6.3% Remember Two Things 3.6% Stand Up 3.6% Miscellaneous Release 2.7% Everyday 1.8% Big Whiskey and the GrooGrux King Live Collaboration 0.9%Construct a frequency bar graph.How to find the class width of a frequency table?
