how can you rewrite (z ≤ -1.75) in order to find the answer?\np(z ≤ 1.75)\np(z ≥ -1.75)\n1 - p(z ≤ -1.75)\n1…
how can you rewrite (z ≤ -1.75) in order to find the answer?\np(z ≤ 1.75)\np(z ≥ -1.75)\n1 - p(z ≤ -1.75)\n1 - p(z ≤ 1.75)
Answer
Answer:
1 - P(z ≤ 1.75)
Explanation:
Step1: Recall normal - distribution property
The standard normal distribution is symmetric about z = 0.
Step2: Use symmetry formula
P(z ≤ -a)=1 - P(z ≤ a). Here a = 1.75, so P(z ≤ - 1.75)=1 - P(z ≤ 1.75).