I do i posted a lot of math do the one that i posted a long time ago
Let x be a random variable representing the length of a text messaging conversation, then
P(x > 3) = 1 - P(x < 3) = 1 - P(z < (3 - 2)/0.5) = 1 - P(z < 2) = 1 - 0.97725 = 0.02275
Answer: $1500 + 3% + $82,975= 84475.03
Step-by-step explanation:
Firstly 31*4=124
1*3=3
124-3=121
121/12