### Lesson 2.1 Frequency Distributions **Instruction Step: 1 of 2** #### Frequency Distribution Table Below is a frequency table representing the distribution of the length of screws (in inches). | Class Length (in inches) | Frequency | |--------------------------|-----------| | 0.28–0.37 | 13 | | 0.38–0.47 | 12 | | 0.48–0.57 | 9 | | 0.58–0.67 | 6 | | 0.68–0.77 | 13 | **Task:** Determine the midpoint for the second class. To find the midpoint of a class interval, use the formula: \[ \text{Midpoint} = \frac{\text{Lower Class Limit} + \text{Upper Class Limit}}{2} \] Example for the second class (0.38–0.47): \[ \text{Midpoint} = \frac{0.38 + 0.47}{2} = 0.425 \] Thus, the midpoint for the second class is 0.425 inches. Note: This table and calculations help understand the spread and central tendencies in the given data set.
### Lesson 2.1 Frequency Distributions **Instruction Step: 1 of 2** #### Frequency Distribution Table Below is a frequency table representing the distribution of the length of screws (in inches). | Class Length (in inches) | Frequency | |--------------------------|-----------| | 0.28–0.37 | 13 | | 0.38–0.47 | 12 | | 0.48–0.57 | 9 | | 0.58–0.67 | 6 | | 0.68–0.77 | 13 | **Task:** Determine the midpoint for the second class. To find the midpoint of a class interval, use the formula: \[ \text{Midpoint} = \frac{\text{Lower Class Limit} + \text{Upper Class Limit}}{2} \] Example for the second class (0.38–0.47): \[ \text{Midpoint} = \frac{0.38 + 0.47}{2} = 0.425 \] Thus, the midpoint for the second class is 0.425 inches. Note: This table and calculations help understand the spread and central tendencies in the given data set.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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