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Neporo4naja [7]
3 years ago
6

If observed frequencies are 5,10,15 and expected frequencies are each equal to 10 then chi square value is

Mathematics
1 answer:
lina2011 [118]3 years ago
5 0

Answer:

5

Step-by-step explanation:

Given :

Observed values = 5, 10, 15

Expected freqencies = 10

χ² = Σ(observed - Expected)² / Expected

χ² = (5-10)²/10 + (10-10)²/10 + (15-10)²/10

χ² = 25/10 + 0/10 + 25/10

χ² = 2.5 + 0 + 2.5

χ² = 5

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Evaluate the triple integral. 5x dv, where e is bounded by the paraboloid x = 7y2 + 7z2 and the plane x = 7. e
Mrac [35]

Convert to cylindrical coordinates:

x=x

y=r\cos\theta

z=r\sin\theta

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Now

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3 years ago
Find the unit rate.<br><br> 6 2/5 revolutions in 2 2/3 seconds
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1) Convert mixed fractions into fractions.

6 2/5 = ((6*5) + 2) / 5 = 32 / 5
2 2/3 = ((2*3) + 2) / 3 =  8 / 3

2) 32 / 5 ÷ 8 / 3 ; where 32/5 is the 1st fraction and 8/3 is the 2nd fraction
a) Get the reciprocal of the 2nd fraction:
   From 8/3 to 3/8
b) Multiply 1st fraction to the reciprocal of the 2nd fraction
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c) Simplify the fraction.
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 The unit rate is 12 / 5 = 2 2/5 revolutions per second.
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7 0
3 years ago
Read 2 more answers
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