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On the first 7 statistics tests of the semester, Jamal

scored 61, 76, 79, 80, 80, 84, and 91. The mean,

median, and mode of his scores were 79, 80, and 80,

respectively. On the 8th statistics test, Jamal scored 90.

How do the mean, median, and mode of all 8 of his )

scores compare to the mean, median, and mode of his

first 7 scores?

Respuesta :

The mean, median and mode can be calculated from the test scores to

given the following comparisons.

  • The mean of all 8 score > The mean of the first 7 scores
  • The mean and median of all 8 scores = The mean and median of the first 7 scores

How can the mean, median and mode be compared?

The mean of all 8 scores is given as follows;

Mean = (61 + 76 + 79 + 80 + 80 + 84 + 91 + 90) ÷ 8 ≈ 80

The median = The middle score = (80 + 80) ÷ 2 = 80

The mode is the commonest score = 80

Therefore;

  • The mean of all 8 score is larger than the mean of the first 7 scores

  • The mean and median of all 8 scores are equal to the mean and median of the first 7 scores

Learn more about the measures of central tendencies here:

https://brainly.com/question/1058330

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