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)\ndone
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 ≤ - 1.75)=P(z ≥ 1.75). And since the total area under the standard - normal curve is 1, P(z ≥ 1.75)=1 - P(z ≤ 1.75).