"As the death rate from drug overdoses surged in the US over the last several years, the number of organ donors who died from overdoses increased from 1.10% of all deceased organ donors in 2000 to 9.34% in 2015, according to government data.. The rate of deaths from drug overdoses has increased 137% since 2000, including a 200% increase in the rate of overdose deaths involving opioids" The Guardian May 1st, 2016 a) The percentage of organ donors who died from drug overdoses changed by 9.34% - 1.10% = 8.24% between 2000 and 2015. What is this as a percentage of donors dying from drug overdoses in 2000? b) True/False: Between 2000 and 2015 the rate of overdose deaths involving opioids doubled.

The production of hybrid cars increased from $3.94 million in 2003 to $6.93 million in 2013. Calculate the average annual percent growth in the production of hybrid cars (use the geometric mean concept). Express your answer as a percentage rounded to two (2) decimal places.

What is the purpose of determining a measure of central tendancy?

You decide that you want to make sure your estimate from part a is correct. You go out and gather 10 simple random samples of 25 people in your school and calculate the proportion of students within each sample whose Amazon packages arrive within two business days of ordering.  The proportion of customers that receive their packages within two days of ordering are given below.  0.70, 0.75, 0.6, 0.95, 0.90, 0.73, 0.87, 0.86, 0.92, 0.97 Explain why all of the sample proportions are not the same.

The number of countries shown in this bar chart where the rate of rapes is below 10 for every 100,000 is Rape at the national level, number of police-recorded 70 offences (rate/100,000)- United nations (2012) 60 50 40 30 20 10 66.5 34.1 33.0 29.8 29.6 27.6 Jamaica Bolivia Sweden 26.6 24.9 22.3 Belgium USA 18.7 Costa Rica 1.7 1.6 1.5 Finland Source: United nations office on drugs and crime "CTS2013 SexualViolence.xls" 1.4 Hong Kong Slovakia Norway 1.0 0.9 8. 0.9 0.7 Japan UAE Greece 18 Canada Serbia 10 Indonesia New Zealand Brazil

What is cognitive age? How is it measured?

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