JEE Main 2022 · MathsNumerical answerNumerical valueHardMulti-step

JEE Main 27 June 2022, Shift 2, Maths Q30

Question 30 of 90 in this shift, Maths question 30 of 30, Section B.

Let

S=\{E_1, E_2,\dots\dots\dots E_8\}

be a sample space of a random experiment such that

P(E_n)=\frac{n}{36}

for every

n=1, 2, \dots\dots, 8

. Then the number of elements in the set

\left\{A\subseteq S: P(A)\geq\frac{4}{5}\right\}

is ___________.

Official answer

NTA final key.