Question
If a coin is tossed 10 times then what is the
probability of getting three heads?Solution
Total sample spaces = 2¹⁰ Total favourable events N(P) = ¹⁰C₃ Probability (E) = (N(P))/(N(S)) = (¹⁰C₃ )/(2¹⁰) = (¹⁰C₃ )/(2⁵. 2⁵) = ((10 × 12 )/(3 × 2))/(32 × 32) = (10 × 12)/(32 × 32) = 15/128
More Probability Questions
The pH of blood is primarily regulated by:
Which chemical is used to make artificial rain?
What is the product of the reaction?
CH₃COOH + CH₃OH → (H⁺, heat)
A mobile phone charger is
Insulin is secreted by which organ?
Noise is measured in –
The Weight of an object on Earth is 600 N. What will be its weight on moon?
Which of the following is an unsaturated hydrocarbon ?
The sharpness of a television image is termed as its –
NaOH + HC1 -> NaCl + H₂ O in the given chemical reaction
Relevant for Exams:
