For Problem 19.1, calculate the probability distribution and plot the probability-distri...

For Problem 19.1, calculate the probability distribution and plot the probability-distribution curve.

Problem 19.1:

The scores of a test for an engineering class of 30 students is shown here. Organize the data in a manner similar to Table 19.1 and use Excel to create a histogram.

Scores: 57, 94, 81, 77, 66, 97, 62, 86, 75, 87, 91, 78, 61, 82, 74, 72, 70, 88, 66, 75, 55, 66, 58, 73, 79, 51, 63, 77, 52, 84