Answer is the first one, A. 8 1/4
Answer: -20
Step-by-step explanation:
the answer is negative twenty
Answer:
x is less than 4
or
x is greater than 4
Step-by-step explanation:
-5x < -15x + 40 -5x < -15x + 40
+15x +15x -40 -40
10x < 40 -40 - 5x < -15x
÷10 ÷10 +5x +5x
× < 4 -40 < -10x
÷10 ÷10
4 < ×
Answer:
Option C) 0.25
Step-by-step explanation:
We are given the following information in the question:
Mean, μ = 22 minutes
Standard Deviation, σ = 11.9 minutes
We are given that the distribution of response time is a bell shaped distribution that is a normal distribution.
Formula:
P(response times is over 30 minutes)
P(x > 30)
Calculation the value from standard normal z table, we have,
![P(x > 30) = 1 - 0.749= 0.251 = 25.1\%](https://tex.z-dn.net/?f=P%28x%20%3E%2030%29%20%3D%201%20-%200.749%3D%200.251%20%3D%2025.1%5C%25)
Thus, the correct answer is
Option C) 0.25