Consider the following frequency table representing the scores on a test Scores

Question

Consider the following frequency table representing the scores on a test Scores on a Test lass Frequency 20- 32 33- 4512 46- 58 59- 71 72- 8411 Step 1. Find the lower class limit for the fourth class Step 2. Find the upper class limit for the second class Step 3. Find the class width of each class Step 4. Choose the interval in which the score 60.7 would lie. A) 20- 32 B) 33- 45 C) 46- 58 D) 59- 71 E) 72- 84 Step 5. Find the number of scores between 19.5 and 58.5. 2. Consider the following frequency table representing the distribution of the price of a newspaper (in dollars) Price of a Newspaper (in Dollars Class 0.24- 0.30 0.31- 0.37 0.38- 0.44 0.45- 0.51 0.52- 0.58 Frequency 12 4 Find the class width of each class

Explanation / Answer

As per the Chegg policy we are advised to do only one question at a time so I am attempting the first one.

1. Step - 1: the fourth class interval is 59 - 71 so lower limit of fourth class = 59

Step - 2: the second class interval is 33 - 45 so upper limit of second class = 45

Step - 3: Class width of each class = 33 - 20 = 13

Step - 4: 60.7 would lie in the interval from 59-71. Option D is correct.

Step - 5: Number of scores between 19.5 and 58.5 = 9 + 12 + 7 = 28

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