You are the new warden in the Jessup Correctional Institution



SOLUTIONSCHAPTER 2: UNDERSTANDING DATA DISTRIBUTIONS WITH TABLES AND GRAPHS1. The following data represent the age of first arrest for a sample of 50 boys. With this data, construct an ungrouped frequency distribution, and a percent, cumulative frequency, and cumulative percent distribution.111510191513111210141012111413161512111013111416111615131110121013111091617151615101115121313141110XFrequencyCum. Freq.PercentageCum. %9112%2%1091018%20%11102020%40%1252510%50%1373214%64%144368%72%1574314%86%1654810%96%171492%98%191502%100%Using the above distribution,7 boys had their first arrest at age 1386% of boys had their first arrest by age 15 (43 of the 50)34% (8 + 14 + 10 + 2 or 98 – 64)64% of the boys had their first arrest before age 14 (32 of the 50)14% (10 + 2 + 2 or 100 – 86)f.2. The state of Maryland is interested in analyzing cases of domestic violence in order to increase the effectiveness of the law enforcement response to violence against women. In a study of 40 incidents of domestic assault reported to law enforcement agencies in Maryland, researchers collect information about the age of each victim.33262026362618363133323529222938242927265237402430483132414325342931245831404124Group these data into categories with an interval width of 4 (the first interval should begin at 16). Calculate the stated class limits, real limits, midpoints, frequency, cumulative frequency, proportion, cumulative proportion, percentage and cumulative percentage.Stated LimitsRealLimitsMidpointfcfp%cpc%16–1915.5–19.517.5110.0252.500.0252.5020–2319.5–23.521.5230.0505.000.0757.5024–2723.5–27.525.510130.25025.000.32532.5028–3127.5–31.529.59220.22522.500.55055.0032–3531.5–35.533.56280.15015.000.70070.0036–3935.5–39.537.54320.10010.000.80080.0040–4339.5–43.541.55370.12512.500.92592.5044–4743.5–47.545.50370.0000.000.92592.5048–5147.5–51.549.51380.0252.500.95095.0052–5551.5–55.553.51390.0252.500.97597.5056–5955.5–59.557.51400.0252.501.000100.003. a.b. No these data to not have a normal distribution. The data have a positive skew.c. There are high outliers in the data – 14, 15, and 29 prior convictions are unusually high scores. ................
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