expected frequency for cell 2 is 5 and the observed frquency is 12.5 what is chi square for cell 2?
605304
Um... observed can't be 12.5.  Only expected can be fractional; observed is an actual count from the sample, which makes it a whole number.\n\nIf you meant the other way around, then cell 2 would contriubute\n\n(5-12.5)^2/12.5 = 4.5\n\nto the chi-square test statistic.  You, of course need to include the other cells as well.  The formula is\n\n(O-E)^2/E,\n\nWhere O is the observed count and E is the expected count for each cell.
389904
Multiply 12.75 by a conversion factor of 2.54 for an approximation.  It's a little over 32
463856
Gosh this is a bit vague - but I think you're referring to why we use 1/F when getting a lower confidence interval or doing a 2-sided test.\n\nThe definition of an F m,n-dsitribution is:\n\n[Chi-square(m)/ m] ÷ [Chi-square (n) / n]\n\nTherefore if we did 1 / Fm,n this would be:\n\n[Chi-square(n)/ n] ÷ [Chi-square (m) / m]\n\nSince "dividing by a fraction is the same as turning it over and mulitplying by it".\n\nSo suppose we want a lower 5% limit for F4,5, ie:\n\nP(F4,5 < ? ) = 0.05\n\nWe can invert both sides:\n\nP(1/F4,5 > 1/?) = 0.05\n\n(Note the sign changes, eg 2 < 3 but 1/2 > 1/3)\n\nBut using the result from earlier 1/F4,5 = F5,4:\n\nSO we now have:\n\nP(F5,4 > 1/?) = 0.05\n\nSo what we do is look at the upper 5% point in the F5,4 -tables which is 6.256.\n\nSo 1/? = 6.256\n\nHence ? = 1/6.256\n\nSo the shortcut rule is to get the value we do "one over the F distribution with the number swapped round"\n\nHope this helps.
123406
Try Chi square testing, it starts out complicated but once you understand it, it is way faster than punnett squares! You can find all kinds of stuff about it on the internet, it's a statistical analysis.
480823
if your array is 5 wide by 46 long, then you just assign an incrementing value to each consecutive cell and you will find that the last cell (5,46) = 5 X 46.\nSee below:\n\n1,2,3,4,5,6,....44,45,46 -cell (1,46) = 1 X 46 = 46\n47,48,49,50,....90,91,92 -cell (2,46) = 2 X 46 = 92\n...\n...\n...228,229,230 - cell (5,46) = 5 X 46 = 230
359158
The cells double every 12 hours.  In three days (ie 72hrs), the cells will go through 6 doublings (72/12=6).  \n\n0 hr = 2 cells\n12hr = 4 cells\n24hr= 8 cells\n36hr = 16 cells\n48hr = 32 cells\n60hr = 64 cells\n72hr = 128 cells\n\nThus you will have 128 cells after 3 days.
1161613
Angular frequency = Sqrt(k/m)\n\nk===spring constant ; m= mass\n\n2* pi*Frequency=Angular frquency\n\n===>Frequency =(1/(2*3.14) *sqrt(k/m)\n\n5.5=0.1592*sqrt(130/m)\n130/m=(5.5/0.1592).^2\n\nm=0.0109 Kg\n\nAngular frequency = 2*3.14*5.5=34.5400\n\n\nT=1/frequency\n\nT=1/5.5 s=  0.1818 sec
355213
In y = A sin Bt, B is the frequency in radians/second, or B = 2pi*f, where f is the frequency in cycles/second, or Hertz.\n\nI assume by "c= 3 x 10^10", you're referring to the speed of light, which is 3*10^10 cm/sec.\n\nf = c / wavelength, so f = 3*10^10 cm/sec / (3*10^-10cm) = 3*10^20 cycles/sec or 3*10^20Hz.\n\nSo B = 2*pi*f = 2*pi*3*10^20 = 6*pi*10^20 radians/sec.  That's about 1.885*10^21 radians/sec.\n\nNote that these equations hold for all electromagnetic radiation, including radio waves, microwaves, IR, light, UV, X rays, and gamma rays.
444067
Put this in C1:\n\n=(12-A1)-(12-B1)\n\nHave the cell formated to time.
810936
f = c/L, where f is the frequency in Hz, c is the speed of light in m/s, and L is the wavelength in m.\n1 angstrom = 1e-10 m, c = 300e6 m/s, so,\nf = 300e6/4000e-10 = 750e12 Hz = 750e6 MHz...that's 750 million MHz.
819996
T1=m1*a, no matter are there m2 & m3 or not.\nT2=(m1+m2)*a, no matter whether m1 & m2 are connected with a string or are in one lump, the presence of m3 being unimportant too.
401082
1 day = 24 hours = 48 cell divisions\n\n3 x (2 to the 48th power) = 844,424,930,131,968 cells
366534
It completely depends on where you are using this formula, is it in Excel? A program? What language?\n\nWe need more info.
907310
5\n\n1s,2s,2px,2py,2pz
533127
2*2*2*5*5 or 2to the third power times 5 to the second power
522069
well.. refractive index is a function of frequency
683354
b. 93,300,000 Hz\n\nFM stations measure their frequencies in Megahertz (MHz)