An â average IQ scoreâ or ânormal IQ scoreâ can be defined as a score between 85 and 115. 68% of people score between 85 and 115. The Mensa qualifying IQ score is a score that puts you in the top 2% of the population in a bell curve like this one.The Mensa qualifying score is 130 or higher, as shown below. This table indicates how IQ levels can be classified.ne strategy for measuring your true IQ level and assessing your chance of joining Mensa is to take a Mensa supervised test â $40.00 in the US / Â£17.50 in the UK. This fee includes: 1  A reserved place at the centre of your choice.
Definition of lethal. 1a : of, relating to, or causing death death by lethal injectionb : capable of causing death lethal chemicals. 2 : gravely damaging or destructive : devastating a lethal attack on his reputation.
median lethal dose (LD 50) the quantity of an agent that will kill 50 per cent of the test subjects; in radiology, the amount of radiation that will kill, within a specified period, 50 per cent of individuals in a large group or population.ffective dose (ED) that quantity of a drug that will produce the effects for which it is administered. See also median effective dose. erythema dose that amount of radiation that, when applied to the skin, causes erythema (temporary reddening). fatal dose lethal dose.