(INFP stands for Introvert, iNtuitive, Feeling, Perceiving and represents individual's preferences in four dimensions characterising personality type, according to Jung's and Briggs Myers' theories of personality type.)
The least count is the value of the smallest scale division of the measurement instrument. Example: a ruler with marks 1 millimeter apart has a least count of 1 millimeter The least count of an instrument is the size of the smallest scale division on the instrument. The smaller the least count the more precise the instrument is said to be. For example a metric ruler which has millimeter marks has a least count of 1 mm or 0.1 cm. and when properly used it can make more precise measurements than one with centimeter marks.
How to Use a Metric Ruler. There are two types of scales commonly used on rulers; Fractional and Decimal. Fractional Rulers have graduations or marks based on fractions, for example 1/2, 1/4 1/8, 1/16, etc.. Decimal Rulers have graduations or marks which are based on the decimal system such as 0.1, 0.01, etc. Decimal Rulers can be based on any measuring system but are usually based on either the English measurement system of inches (in) or the Metric measurement system of millimeters (mm), centimeters (cm) and meters (m).