(a) the standard normal curve is graphed below. shade the region under the standard normal curve to the left…
(a) the standard normal curve is graphed below. shade the region under the standard normal curve to the left of z = \n(b) use this table or the aleks calculator to find the area under the standard normal curve to the left of z = - 0.50. give your answer to four decimal places (for example, 0.1234).
Answer
Explanation:
Step1: Use z - table lookup
We look up the value of (z=- 0.50) in the standard - normal (z -) table. The z - table gives the area under the standard normal curve to the left of a given z - value.
Step2: Find the area
From the z - table, the area to the left of (z =-0.50) is (0.3085).
Answer:
(0.3085)