The mean is the average of the numbers. ... It is easy to calculate add up all the numbers, then divide by how many numbers there are.
100 = 40 per cent how to calculate the percentage of a number? to calculate the percentage of a number, we need to use a different formula such as: p% of number = x where x is the required percentage. if we remove the % sign, then we need to express the above formulas as; p/...
Finding the Mean, Median and Mode From Grouped Frequency Tables In previous articles, we have had a look at how to find the mean, median, mode and range of a group of data when that data was presented as a list of numbers and also when it was presented in frequency tables, but what...
(x, x 1 , x 2 , x 3 , etc). the mean is applied to the values of the variable m and the number of data that is assigned to the variable n. variance is the average of the values of squared differences from the arithmetic mean . to calculate the mean value, the values of ...
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To understand how the frequency of a wave is related to its time period, we can break it down into a few simple steps:1. Define Frequency: - Frequency (f) is defined as the number of complete cycles (or vibrations) of a wav
Step 2: Calculate the wavelength (λ)The relationship between velocity (v), frequency (f), and wavelength (λ) is given by the formula:v=f×λ We can rearrange this to find the wavelength:λ=vf Substituting the values:λ=320m/s400Hz Step 3: Perform the calculation for wavelengthCalculatin...
Each value occurs once, so let us try to group them. We can try groups of 10: 0-9: 2 values (4 and 7) 10-19: 2 values (11 and 16) 20-29: 4 values (20, 22, 25 and 26) 30-39: 1 value (33) In groups of 10, the "20s" appear most often, so we could choose 25 (...
The boost in email traffic to the eCommerce website from before to after the volume increase is a factor of 8.7. The revenue numbers were similarly impressive. The blue line is the monthly email volume. The send frequency was increased significantly between months 28 to 30, as seen by the...