Sara got 88, 90, 75, 78, 100, 54, 90, 100, 45, and 60 on her English tests. Lee got 77, 67, 99, 79, 100, 65, 79, 89, 58, and 67 on his English tests. What is the mean of Sara's English tests? What is the mean of Lee's English tests? please answer both questions

• TheBreeze: The mean is the average, so I added up all the numbers and divided that by the number of tests:
  Sara's mean: 78
  Lee's mean: 78
• isedwards147: Sara:
  88, 90, 75, 78, 100, 54, 90, 100, 45 and 60
  add them all up which is 780
  then divide by the number of test results you have which is 10
  780/10
  Sara's mean is 78 on her test scores.
  
  Lee:
  77, 67, 99, 79, 100, 65, 79, 89, 58, 67
  add them all up which is 780
  divide by the number of test results 10
  780/10
  Lee's mean is 78 on her test scores.