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1). Name and describe the measures of central tendency. 2). Describe the role and job requirements...

1). Name and describe the measures of central tendency. 2). Describe the role and job requirements of fieldworkers.

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Answer #1

1). Name and describe the measures of central tendency

MEAN

  • It is the arithmetic average of the set.
  • It is calculated by summing all values, then dividing by the number of values
  • It is greatly affected by extreme values.

MEDIAN

  • It is defined as the middle value when observations are ordered from smallest to largest
  • It is also known as the 50th percentile.
  • It is commonly used robust and resistant measure of central tendency.

MODE

  • It is the most frequent score in the data set.
  • mode is not unique
  • mode will not provide a very good measure of central tendency

2). Describe the role and job requirements of fieldworkers.

  • fieldworkers have to be highly flexible
  • fieldworkers have to be good communicators
  • fieldworkers have to be reliable and accurate
  • fieldworkers have to be organised
  • fieldworkers should be aware of data protection
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