Answer:116/1000
Step-by-step explanation:
Here your answer for your question
The number of scores between 19.5 and 49.5 using the cumulative frequency is <u>16</u>.
<h3>What is the cumulative frequency?</h3>
The cumulative frequency is the running total of frequencies over some class intervals.
The frequency refers to the number of elements in the set or class.
Therefore, the cumulative frequency is the sum of all previous frequencies up to the required point.
<h3>Data and Calculations:</h3>
Scores on a Test
Class Frequency Cumulative Frequency
20–29 9 9 (0 + 9)
30–39 4 13 (9 + 4)
40–49 3 16 (13 + 3)
50–59 2 18 (16 + 2)
60–69 10 28 (18 + 10)
Thus, the number of scores between 19.5 and 49.5 using the cumulative frequency is <u>16</u>.
Learn more about cumulative frequencies at brainly.com/question/21807065
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Answer: The length of BD is 9
Step-by-step explanation: The length of the segment from the vertex to the centroid is twice the length of the segment from the centroid to the midpoint on the side opposite the vertex
In other words, the length of BE is 2/3 the length of BD. let x be the length
6 = 2/3 x
3/2(6) = x
9 = x
Well, since it is multiple choice, you can just eliminate the answers. If you take 5/4 it equals 1.25. Then you go through the choices. All of the numbers, except 7.2 (C) are infinite. And, 7.2 gives you the 1.25 from before... which is your answer
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