Question

i can display data on dot plots, histograms, and box plots. 12. use the list of scores below to complete a frequency table and a histogram displaying the grade students received on their science fair projects. 66, 89, 93, 81, 72, 78, 70, 55, 96, 84, 94, 92, 81, 86, 79

Explanation:

Step1: Determine score ranges

Let's use ranges: 50 - 59, 60 - 69, 70 - 79, 80 - 89, 90 - 99.

Step2: Count scores in each range

For 50 - 59: There is 1 score (55), so tally is | and frequency is 1.
For 60 - 69: There is 1 score (66), so tally is | and frequency is 1.
For 70 - 79: Scores are 72, 78, 70, 79, so tally is |||| and frequency is 4.
For 80 - 89: Scores are 89, 81, 81, 86, 84, so tally is |||| and frequency is 5.
For 90 - 99: Scores are 93, 96, 94, 92, 96, so tally is |||| and frequency is 5.

Answer:

Range of Scores	Tally	Frequency
60 - 69		1
70 - 79						4
80 - 89						5
90 - 99						5

(Note: To draw the histogram, use the score - ranges on the x - axis and the frequencies on the y - axis, and draw bars for each range with height equal to the frequency.)