Two coins are tossed 400 times and we get two heads : 112 times, one head , 160 times , 0 head , 128 times . When two coins are tossed at random , wha

Correct Answer - `(63)/(100)`

Correct Answer - (i) ` 1/2 (ii) 3/4 (iii) 3/4 `

Correct Answer - `(i) 7/25 (ii) 22/25 (iii) 3/5`

Correct Answer - (i) 0.57 (ii) 0.43

Given that \(\vec a, \vec b\) and \(\vec c\)are unit vectors. i.e., |\(\vec a\)| = |\(\vec b\)|  = |\(\vec c\)| = 1 And \(\vec a\) + \(\vec b\) + \(\vec c\) = \(\vec 0\) Then \((\vec a+\vec b+\vec c).(\vec a+\vec b+\vec c)=\vec 0.\vec...

Correct option is (B) 1/4 If two identical coins are tossed, then possible outcomes are S = {HH, HT, TH, TT}. Let event E be event of getting 2 heads. \(\therefore\) E = {HH} \(\therefore\) n(E)...

Correct option is (C) 7/8 If three coins are tossed then possible outcomes are S = {HHH, HHT, HTH, THH, HTT, THT, TTH, TTT} \(\therefore\) Total outcomes is n(S) = 8 Let event E...

Correct option is (B) 1/4 If two coins are tossed then possible outcomes are S = {HH, HT, TH, TT} Let event E = Getting two heads = {HH} \(\therefore\) n(E) = 1 & n(S)...