Pls help me, These are the only given that is given to us. Nothing more
1. Do social robots walk or roll? According to the United Nations, social robots now outnumber industrial robots worldwide. A social (or service) robot is designed to enter- tain, educate, and care for human users. In a paper pub- lished by the International Conference on Social Robotics (Vol. 6414. 2010), design engineers investigated the trend in the design of social robots. Using a random sample of 106 social robots obtained through a web search, the engineers found that 63 were built with legs only, 20 with wheels only, 8 with both legs and wheels, and 15 with neither legs nor wheels. This information is portrayed in the accompanying figure. a. What type of graph is used to describe the data? b. Identify the variable measured for each of the 106 robot designs. C. Use graph to identify the social robot design that is cur- rently used the most. d. Compute class relative frequencies for the different categories shown in the graph. e. Use the results, part d, to construct a Pareto diagram for the data Robotic Limbs Categories N = 106 70 - 63 60 - 50 - 40 - Number of Robots 30 - 20 20 - 15 10 - 8 0 None Both Legs Wheels ONLY ONLY Types of Robotic Limbs2. Beach erosional hotspots. Beaches that exhibit high ero- sion rates relative to the surrounding beach are defined as erosional hotspots. The U.S. Army Corps of Engineers conducted a study of beach hotspots using an online ques- tionnaire. Information on six beach hotspots was collected. Some of the data are listed in the table. a. Identify each variable recorded as quantitative or qualitative. b. Form a pie chart for the beach condition of the six hotspots. C. Form a pie chart for the nearshore bar condition of the six hotspots. d. Comment on the reliability of using the pie charts to make inferences about all beach hotspots in the country. Long-Term Beach Beach Nearshore Bar Erosion Rate Hotspot Condition Condition (miles/year) Miami No dunes/flat Single, 4 Beach, FL shore parallel Coney Island, NY No dunes/flat Other 13 Surfside, CA Bluff/scarp Single, 35 shore parallel Monmouth Single dune Planar Not estimated Beach, NJ Ocean City. NJ Single dune Other Not estimated Spring Lake, NJ Not observed Planar 14 Source: "Identification and characterization of crosional hotspots." William & Mary Virginia Institute of Marine Science, U.S. Army Corps of Engineers Project Report, March 18, 2002.3. Annual survey of computer crimes. Refer to the 2010 CSI 4. Computer Crime and Security Survey, Exercise 1.19 (p. 15). Recall that 351 organizations responded to the sur- vey on unauthorized use of computer systems. One of the survey questions asked respondents to indicate the per- centage of monetary losses attributable to malicious ac- tions by individuals within the organization (i.e., malicious insider actions). The following histogram sum- marizes the data for the 144 firms who experienced some monetary loss due to malicious insider actions. a. Which measurement class contains the highest propor- tion of respondents? b. What is the approximate proportion of the 144 organi- zations that reported a percentage monetary loss from malicious insider actions less than 20%? c. What is the approximate proportion of the 144 organi- zations that reported a percentage monetary loss from malicious insider actions greater than 60%? d. About how many of the 144 organizations reported a percentage monetary loss from malicious insider actions between 20% and 30%? 0.4 0.35 0.3 - 0.25 Relative Frequency 0.2 0.15 - 0.1 - 0.05 20 40 60 80 100 Monetary Loss (%)4. Sound waves from a basketball. An experiment was con- ducted to characterize sound waves in a spherical cavity. (American Journal of Physics, June , 2010.) A fully inflated basketball, hanging from rubber bands, was struck with a metal rod, producing a series of metallic sounding pings. Of particular interest were the frequencies of sound waves resulting from the first 24 resonances (echoes). A mathe- matical formula, well known in physics, was used to com- pute the theoretical frequencies. These frequencies (measured in hertz) are listed in the table on page 36. Use a graphical method to describe the distribution of sound frequencies for the first 24 resonances. BBALL Resonance Frequency Resonance Frequency 979 13 4334 1572 14 4631 2113 15 4711 2122 16 4993 JOUAWN 2659 17 5130 2795 18 5210 3181 19 5214 8 3431 20 5633 9 3638 21 5779 10 3694 22 5836 11 4038 23 6259 12 4203 24 6339 Source: Russell, D.A. "Basketballs as spherical acoustic cavities", American Journal of Physics, Vol. 48, No. 6, June 2010. (Table L.)
