High School

The following test scores were recorded for a student: 99, 69, 96, 69, 78. Find the mean, median, and mode. Round to the nearest hundredth.

a. Mean: 102.8, Median: 87, Mode: 69
b. Mean: 82.2, Median: 78, Mode: 69
c. Mean: 85.5, Median: 96, Mode: 99
d. Mean: 82.2, Median: 78, Mode: 99

Answer :

b. Mean: 82.2 Median: 78 Mode: 69

Mean: To find the mean, add all the scores together and divide by the number of scores.

  1. Sum = 99 + 69 + 96 + 69 + 78 = 411
  2. Number of scores = 5
  3. Mean = 411 / 5 = 82.2

Median: To find the median, list the scores in numerical order and find the middle number.

  1. Ordered scores = 69, 69, 78, 96, 99
  2. Median (middle score) = 78

Mode: The mode is the score that appears most frequently.

  1. Mode = 69 (appears twice)

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