Question

based on for 43% of adults believe in reincarnation assume that 6 adults are randomly selected find the P at least 3 of 6 believed in reincarnation

Answer 1

P = 43% = 43/100 = 0.43%

Q= 100 -43 = 57%=57/100= 0.57

n= 6

r=3

The probability that at least 3 of 6 believed in reincarnation is

$n^{}_{c_r}\times P^r\times Q^{n-r}$$\begin{gathered} =6_{c_3}\times0.43^3\times0.57^{6-3} \\ =20\text{ }\times\text{ 0.079507}\times0.57^3 \\ =0.2945 \end{gathered}$