Given:
μ = 2 min, population mean
σ = 0.5 min, population standard deviation

We want to find P(x>3).

Calculate the z-score
z= (x-μ)/σ = (3-2)/0.5 = 2

From standard tables, obtain
P(x ≤ 3) = P(z ≤ 2) = 0.9772
Therefore
P(x > 3) = P(z > 2) = 1 - 0.9772 = 0.0228

Answer: 0.02275

8 0

3 years ago

if a truck travel 248 miles in 4 hours then the truck traveled an average of how many miles each hour write an equation to solve

koban [17]

https://www.slader.com/discussion/question/if-a-truck-traveled-248-miles-in-4-hours-then-the-truck-9c45464f/

6 0

4 years ago

(LC)

serg [7]

10

1240 x 10 = 12400
12400 = 12400

8 0

3 years ago