Quiz ครั้งที่ 3 การแจกแจงแบบเลขชี้กำลัง (Exponential Dist.)

$$X\sim Exp\left(1\right)$$

$$X\sim Exp\left(2\right)$$

$$X\sim Exp\left(\frac{1}{2}\right)$$

$$X\sim Exp\left(3\right)$$

$$\mu\ =1$$

$$\mu\ =4$$

$$\mu\ =2$$

$$\mu\ =0.5$$

$$\sigma\ ^2\ =1$$

$$\sigma\ ^2=4$$

$$\sigma\ ^2=2$$

$$\sigma\ ^{2\ }=0.5$$

$$f\left(x\right)=5e^{-5x}$$

$$f\left(x\right)=\frac{1}{5}e^{5x}$$

$$f\left(x\right)=\frac{1}{2}e^{-2x}$$

$$f\left(x\right)=\frac{1}{5}e^{-\frac{1}{5}x}$$

$$f\left(x\right)=5e^{-5x}$$

$$f\left(x\right)=\frac{1}{5}e^{5x}$$

$$f\left(x\right)=\frac{1}{2}e^{-2x}$$

$$f\left(x\right)=\frac{1}{5}e^{-\frac{1}{5}x}$$

$$X\sim Exp\left(\frac{1}{75}\right)$$

$$X\sim Exp\left(75\right)$$

$$X\sim Exp\left(50\right)$$

$$X\sim Exp\left(\frac{1}{5}\right)$$

ถูก

ผิด

$$f\left(x\right)=10e^{-10x}$$

$$f\left(x\right)=\frac{1}{10}e^{-10x}$$

$$f\left(x\right)=10e^{-\frac{1}{10}x}$$

$$f\left(x\right)=\frac{1}{10}e^{-\frac{1}{10}x}$$

$$P\left(X<\frac{1}{6}\right)$$

$$P\left(X<\frac{2}{6}\right)$$

$$P\left(X<\frac{3}{6}\right)$$

$$P\left(X<\frac{4}{6}\right)$$

$$\int_{\frac{1}{2}}^110e^{-10x}dx$$

$$\int_0^{30}10e^{-10x}dx$$

$$\int_0^{\frac{1}{3}}10e^{-10x}dx$$

$$\int_0^{\frac{1}{2}}10e^{-10x}dx$$