To find the probability P(–0.73 < z < 2.27) for a standard normal variable z, we need to find the area under the standard normal curve between z = -0.73 and z = 2.27.
By using a standard normal distribution table or a statistical calculator, we can find:
P(–0.73 < z < 2.27) ≈ 0.9884 - 0.2337 ≈ 0.7547
Therefore, the correct response is:
0.7557
If z is a standard normal variable, find the probability.
P(–0.73 < z < 2.27)
(1 point)
Responses
0.7557
1.54
0.4884
0.2211
1 answer
0 answers