Recording your survey or questionnaire on a tally chart means the data is already collected into groups and you will not need to group it later on. To investigate the most popular colour of car ...

This library gives basic control over the TCS3200 and TCS3210 device. The TCS32x0 are light to frequency converters, that allows the colour to be selected and the frequency to be scaled. The TCS3200 ...

This type of graph, called a dual bar chart, shows the eye colour of year 7 and year 8 students. Image caption, Using the vertical axis, the frequency of each bar can be read. The axis is going up ...

The central band highlights the frequency range with the most signal energy. Signals exhibit varying spectral power depending on the modulation type and SNR. This 3D chart represents the time ...