Following a standard normal distribution curve, find the area to the left of a z score of –1.645. a. 0.0495 b. 0.9500 c. 0.0500 d. 0.9800

Option C 0.05 is correct

Step-by-step explanation:

We have std normal distribution curve is that of a random variable with mean =0 and var =1

The line x=0 divides the area into exactly two equal halves

Since -1.645 lies to the left of 0, we have to find the area to the extreme left i.e. between- infinity and-1.645

We know z critical for 90% confidence interval = 1.645

This implies 0.45 area lies between 0 and -1.645

Hence required area = 0.5-0.45 = 0.05

Option C is perfect answer.

in mathematics, a constraint is a condition of an optimization problem that the solution must satisfy. there are several types of constraints—primarily equality constraints, inequality constraints, and integer constraints. the set of candidate solutions that satisfy all constraints is called the feasible set.

hoped i'm right lol