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Class Mid points
This is very significant values which mark the center of a provided class. They are acquired by adding together the two limits of a provided class and dividing the result by 2.
Class interval or width
It is the difference between a lower class boundary and upper class boundary. The value normally measures the length of a provided class.
Age (yrs)
No. of Students (f)
mid points (x)
x-a = d
D/c = u
fu
15 - 19
21
17
-15
-3
-63
20 - 24
35
22
-10
-2
-70
25 - 29
38
27
-5
-1
-38
30 - 34
49
32(A)
0
35 - 39
31
37
+5
+
40 - 44
19
42
+10
+2
193
-102
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2=42gf
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x=+y^2=4
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The distance from the earth to the moon is approximately 240,000 miles. What is this distance expressed in scientific notation? To convert to scienti?c notation, place a decima
What is 124 out of 300 in percent ?
Show all your work. 80% of your score is for correct justified answers; 20% is for correctly and clearly demonstrating why. For the graphing problems, use www.desmos.com/calculator
write the zeros of underroot3power2 -8x+4underroot 3
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