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IDENTIFY THE CLASS THAT HAS HAD THE GREATEST PERCENTAGE

IDENTIFY THE CLASS THAT HAS HAD THE GREATEST PERCENTAGE

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Author: Christine Farr
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Statistical Analysis Lesson 2Question 1 of 205.0 PointsIdentify the class that has had the greatest percentage increase with respect to its initialpercentage over the five decades.A. FrB. SoC. JrD. SrQuestion 2 of 205.0 PointsA nurse measured the blood pressure of each person who visited her clinic. Following is arelative–frequency histogram for the systolic blood pressure readings for those people agedbetween 25 and 40. Use the histogram to answer the question. The blood pressure readingswere rounded down to the next whole number.Given that 600 people were aged between 25 and 40, approximately how many had a systolicblood pressure reading recorded as between 120 and 149 inclusive?A. 48%B. 250C. 288D. 300Question 3 of 205.0 PointsIdentify the utility that decreases as a percentage of the total utility bill from January to June.A. ElectricB. Natural GasC. WaterD. None decrease from January to June.Question 4 of 205.0 PointsA machine is supposed to fill juice bottles with 16 fluid ounces of juice. The manufacturer picks asample of bottles that have been filled by the machine and determines the volume of juice ineach bottle. The results are shown in the stem–and–leaf diagram below. The leaf unit is 0.1.How many bottles had exactly 16 fluid ounces (to the nearest 0.1 ounce)?A. 0B. 6C. 11D. 25

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