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Given 4 red, 5 blue,3 green balls Total possible outcomes (selecting 2 out of 12 balls) =12C2= (12 × 11)/(2 × 1) = 66 Favorable outcomes (selecting 2 out of 4 red balls) =4C2= (4 × 3 × 2)/ (2 × 2 × 1) = 6 Favorable outcomes (selecting 2 out of 3 red balls) =3C2= (3 × 2)/ (2 × 1) = 3 => P(E) = (6 + 3)/66 = 9/66 = 3/22
Petroleum is a mixture of-
The scientific name of vitamin B12is :
What is the atomic number of silicon, a component of quartz?
The term Fire Ice is used for ___?
Ultra-purification of metals is achieved using:
Chloroquine is classified under which category of drugs?
Hydrogen was discovered by?
An element has an atomic number of 17 and a mass number of 36. How many neutrons are in its nucleus?
What is the Chemical name of Chromic Acid?
What is the chemical name of quick lime?