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Weighted mean
- It is the mean which employs arbitrarily given weights
- This is a useful measure especially whereas assessment is being done yet the situation prevailing are not the similar. It is particularly true when assessment of students is being done described that the subjects being taken have different levels of difficulties.
Illustrations
The given table shows that marks scored by a student doing section of CPA
Subject
Scores (x)
Weight (w)
wx
STAD
65
50
3250
BF
63
40
2520
FA2
62
45
2340
LAW
80
35
2800
QT
69
55
3795
FA3
60
3300
w = 285
wx = 18005
That is = Ewx/Ew
= 18005/285
= 63.17 percent
Let E = xy + y't + x'yz' + xy'zt', find (a) Prime implicants of E, (b) Minimal sum for E. Ans: K -map for following boolean expression is given as: Prime implic
what is the graph of 2 sin x
a company''s advertising expenditures average $5,000 per month. Current sales are $29,000 and the saturation sales level is estimated at $42,000. The sales-response constant is $2,
For the pair of supply-and-demand equations, where x represents the quantity demanded in units of 1000 and p is the unit price in dollars, find the equilibrium quantity and the equ
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A photographer decides to decrease a picture she took in sequence to fit it within a certain frame. She requires the picture to be one-third of the area of the original. If the ori
81-3/4
n(aubuc)..
write 107 in expanded form.
use the expansion of (1-x)^7 to find the value of 1.998^7 correct to five significant figures
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