Table 2 divides the range of these 2s schools academic performance into nine int
ID: 3202291 • Letter: T
Question
Table 2 divides the range of these 2s schools academic performance into nine intervals and gives some of their frequencies and relative frequences. Based on the information provided in Table 1 ase the dropdown menus to complete Table 2. Table 2 Percentage of students at or above grade level) Frequency Relative Frequency 0 to 9 10 to 19 20 to 29 40 to 49 60 to 69 Total The preceding table obeys some basic rules of grouped freouency tables First, the table has approximately 10 The width of each interval is a relatively number. The bottom score in each dass interval is a of the width, on the following graph, use the blue crdes to complete the frequency distribution pouvoon for the schools academic performance based on the distribution in Table 2. specificaly, start by placing a blue circe on pont A Place an additional circle at the appropriate frequency for the interval 30-39, and so on. (Note: The ooordinates for each frequency are placed at the midpoint for the interval rounded to the nearest whole number. For example, you can see that frequency for the interval o to 9 is placed at 4. s, which when rounded s s) place the snal blue crce on point B. when you have finished plotting each point, the diagram should be a complete, unbroken polygon. ACADEMC PERFORMANCE IPercentagel In which interval would a score of 29.6 fall? In which interval would a score of 194 tall?Explanation / Answer
First, the table has approximately 10 class- intervals. The width of each class interval is a relatively simple number.
The bottom score in each class interval is a multiple of the width.
In which class interval would a score of 29.6 fall - 30 to 39
In which interval would a score of 19.4 fall - 10 to 19
We have given the inclusive class interval, where upper and lower limit both are included in any interval. For finding the class interval in which 29.6 and 19.4 falls , we have to change the inclusive type class interval into exclusive type class interval, using class boundaries, and the corresponding class boundaries will be 0.5-9.5,9.5-19.5,19.5-29.5,29.5-39.5,...and so on.
so the score 29.6 falls in the class boundaries( 29.5-39.5) and the corresponding class interval is 30 to 39
Similarly, for 19.4 the class boundaries are (9.5-19.5 ) and corresponding class interval is 10 to 19
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