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A relative frequency table is a table that records counts of data in percentage form, aka relative frequency. It is used when you are trying to compare categories within the table. This is a relative frequency table. Note that the values of the cells in the table are in percentages instead of actual frequencies. You find these values by putting the individual frequencies over the row total ...
The frequency of a wave describes the number of complete cycles which are completed during a given period of time. As such, frequency is a rate quantity which describes the rate of oscillations or vibrations or cycles or waves on a per second basis. A common unit of frequency is the Hertz, abbreviated as Hz. #color(red)("Frequency " = 1 ...
It's a matter of adding up and taking percentages If you have a frequency table, you add a few columns to your table: Cumulative frequency Relative frequency Cumulative relative frequency Cumulative frequency You add the frequencies up to and including for the value Relative frequency You express the frequency as a fraction or percentage of total sum of frequencies Cumulative relative ...
Energy increases as the wavength decreases and the frequency increases. Long wavelength, low frequency waves, such as radio wave seas are thought to be harmless. They don’t carry much energy and are therefore considered safe by most people. As the wavelength decreases and frequency increases, the energy increases - for example X-rays and gamma radiation. We know those are harmful to humans.
The "bin" in a histogram is the choice of unit and spacing on the X-axis. All the data in a probability distribution represented visually by a histogram is filled into the corresponding bins. The height of each bin is a measurement of the frequency with which data appears inside the range of that bin in the distribution. By way of example, in this sample histogram below, each bar ascending ...
See explanation. The basic principle of NMR is to apply an external magnetic field called B_0 and measure the frequency at which the nucleus achieves resonance. Electrons orbiting around the nucleus generate a small magnetic field that opposes B_0. In this case we say that electrons are shielding the nucleus from B_0. Shielding: The higher the electron density around the nucleus, the higher ...
If the activation energy for a given compound is found to be 42.0 kJ/mol, with a frequency factor of #8.0 x 10^10 s^(-1)#, what is the rate constant for this reaction at 298 K? The reaction rate law is known to be 2nd order, and for an initial concentration [NO2(g)]o=0.0100M, the initial rate is 0.0350 M/s.
Vibrating bonds absorb infrared energy at a frequency that corresponds to the vibrational frequency of the bond. In organic chemistry, this corresponds to frequencies of 15 to 120 THz. These frequencies are expressed as wavenumbers: #"wavenumber" = "frequency"/"speed of light" = ν/c#. So the wavenumbers range from 500 to 4000 cm⁻¹.
The equation that relates wavelength, frequency, and speed of light is c = lambda*nu c = 3.00xx10^8 "m/s" (the speed of light in a vacuum) lambda = wavelength in meters nu = frequency in Hertz (Hz) or 1/"s" or "s"^(-1)". So basically the wavelength times the frequency of an electromagnetic wave equals the speed of light. FYI, lambda is the Greek letter lambda , and nu is the Greek letter nu ...
Species diversity is a measurement of species richness and species evenness. Species richness is the number of species. Species richness is the number of species found in a community or ecosystem. Species diversity is a measurement of species richness combined with evenness, meaning it takes into account not only how many species are present but also how evenly distributed the numbers of each ...