Assume that x has a normal distribution, with the specified mean and standard deviation. Find the indicated probabilities. P(x $\le$24)$\mu$ = 28; $\sigma$ = 5
A)0.788
B)0.394
C)0.144
D)0.288
E)0.212

Question

Assume that x has a normal distribution, with the specified mean and standard deviation. Find the indicated probabilities. P(x $\le$24)$\mu$  = 28; $\sigma$ = 5
A)0.788
B)0.394
C)0.144
D)0.288
E)0.212

Quizplus · Accepted Answer

Using the standard normal distribution table or calculator, we can find the z-score as:
z = (24 - 28)/5 = -0.8
The probability can be calculated as:
P(z ≥ -0.8) = 0.788

Assume That X Has a Normal Distribution, with the Specified ≤\le≤

Assume That X Has a Normal Distribution, with the Specified $\le$