Suppose x is a normal random variable with expected value 7

Suppose X is a normal random variable with expected value 7 and standard deviation 3. Then calculate the following porbabilities.

a) P(X <0)

b) P(6 < X < 9)

c) P(|X-6| <1)

d) P(|X-6|>1)

e) P(3X-1 > 20)

f) P(x^2 > 49)

A light fixture contains 2 light bulbs the lifetime xi of : a light fixture contains 2 light bulbs. the lifetime xi of each bulb is exponentially distributed with a mean of 200

Monochromatic light of 630 nm wavelength is used the same : a single slit forms a diffraction pattern with the first minimum at an angle of 40 deg from central maximum.

Eastimate the local wavelength of this function at x40cm by : consider the function fx cosbsqrt of x where b 6.28 cm-0.5.a argue that this wave has crests at x0.1 cm 4cm 9cm and so

The roller-coaster track shown is contained in a vertical : the roller-coaster track shown is contained in a vertical plane. the portion of track between a and b is straight and

Suppose x is a normal random variable with expected value 7 : suppose x is a normal random variable with expected value 7 and standard deviation 3. then calculate the following

The roller-coaster track shown is contained in a vertical : the roller-coaster track shown is contained in a vertical plane. the portion of track between a and b is straight and

What is the critical value of z in the previous question : public health officials claim that people living in low income neighborhoods have different physical activity levels

A 380-liter tank contains steam initially at 300 kpa and : a 380-liter tank contains steam initially at 300 kpa and 400degc. a valve is opened and steam flows out of the tank at

What is the critical value of z in the previous question : public health officials claim that people living in low income neighborhoods have different physical activity levels