Question

each day, frank records the number of news articles he reads. the dot plot gives his numbers for the last eleven days. (a dot plot is sometimes called a line plot.) find the mode and the range for the data. (a) mode: (b) range:

Explanation:

Step1: Find the mode

The mode is the value that appears most frequently. From the dot plot:

• Number of dots at 1: 3
• Number of dots at 7: 5
• Number of dots at 8: 1
• Number of dots at 9: 2
• Numbers 2,3,4,5,6 have 0 dots.

Since 7 has the most dots (5), the mode is 7.

Step2: Find the range

The range is calculated as the maximum value minus the minimum value.

• Minimum value (smallest number of articles): 1
• Maximum value (largest number of articles): 9
• Range = \( 9 - 1 = 8 \)

Answer:

(a) Mode: \( 7 \)
(b) Range: \( 8 \)