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1. Suppose you have a vector x of data in R which ranges from 0 to 100. Which command in R will produce a histogram with breakpoints located at 0,10,20,30,40,50,60,70,80,90,100?

  1. hist(x,breaks=0:100)
  2. hist(x,breaks=seq(0,100,1))
  3. histogram(x,breaks=0 to 100)
  4. None of the above

2. A survey is giving to a group of individuals in order to better under how many hours per week they work per day and to see if this has an effect on their productivity levels. When the employees are given the survey, some decide to answer, on average, 2 hours more than they actually work. They respond this way since they feel fear of retribution from their employer if they answer their true feelings. This type of error is commonly referred to as:

  1. Non-Response Error
  2. Response Error
  3. Sampling Error
  4. None of the above

Reference no: EM131158739

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