14.) Students in a statistics class took their first test. The following are the scores they earned. Create a frequency distribution and histogram for the data using class limits that make sense for grade data. Describe the shape of the distribution. Compare to the graph in question 13. Table #2.2.14: Data of Test 1 Grades 67 67 76 47 85 70 87 176 80 72 84 84 64 65 81 81 88 74 87 83 98 82

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FREQUENCY DISTRIBUTION OF GIVEN RAW DATA

CLASS INTERVALFREQUENCY
40 – 501
50 – 600
60 – 704
70 – 805
80 – 9011
90 – 1001

HISTOGRAM

SHAPE

ACCORDING TO THE HISTOGRAM , WE CAN CLEARLY SAY THAT THE DATA IS SKEWED TO THE LEFT.

THE TAIL OF THE DISTRIBUTION IS MUCH LONGER ON THE LEFT SIDE THAN TO THE RIGHT SIDE.