mymomcameandsaw
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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

Respuesta :

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
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.

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