envision math iii - read line plots practice. use the line plot. amount of hours read. hours. 1. how many…

envision math iii - read line plots practice. use the line plot. amount of hours read. hours. 1. how many people read? 2. which time was the most common? 3. which time is an outlier? 4. how many more people read 1 2/6 hours than 1 1/6 hours? 5. timothy said more than half the people read for less than 1 3/6 hours. do you agree? explain.

envision math iii - read line plots practice. use the line plot. amount of hours read. hours. 1. how many people read? 2. which time was the most common? 3. which time is an outlier? 4. how many more people read 1 2/6 hours than 1 1/6 hours? 5. timothy said more than half the people read for less than 1 3/6 hours. do you agree? explain.

Answer

Explanation:

Step1: Count total dots

Count all the dots on the line - plot to find the number of people who read. There are 5 + 2+ 5+ 3+ 1=16 people.

Step2: Find most common time

The most common time is the time with the most dots. The time 1 and 1$\frac{2}{6}$ hours both have 5 dots, which is the most.

Step3: Identify outlier

An outlier is a data - point that is far from other data - points. The time 2 hours has only 1 dot while most other times have 2 or more, so 2 hours is an outlier.

Step4: Calculate difference

The number of people who read 1$\frac{2}{6}$ hours is 5 and the number of people who read 1$\frac{1}{6}$ hours is 2. The difference is 5 - 2 = 3.

Step5: Check Timothy's statement

The number of people who read for less than 1$\frac{3}{6}$ hours is 5+2 + 5=12. Since 12>8 (half of 16), Timothy is correct.

Answer:

  1. 16
  2. 1 hour and 1$\frac{2}{6}$ hours
  3. 2 hours
  4. 3
  5. Yes, because 12 out of 16 people read for less than 1$\frac{3}{6}$ hours.