Answer:
none of it
Step-by-step explanation:
Answer:

Step-by-step explanation:
1. Add the equations. The y's cancel out.

2. Embed x in either equation and find y.

Answer:
Step-by-step explanation:
mean µ = 500
standard deviation σ = 100
Required P ( X < µ + σ )
= P ( X < 500 + 100 )
= P ( X < 600 )
= P [Z < (X - µ) / σ ]
= P [Z < (600 - 500) / 100 ]
= P [Z < + 1 ]
= .8413
In terms of percent the probability is 84.13 % .
Answer:2
Step-by-step explanation: