Answer:
Step-by-step explanation:
cuz 7 is greater then 5
Answer:
σX = 3161
Step-by-step explanation:
The standard deviation is the square root of the multiplication of each probability multiplied by the squared difference between the values and the mean.
In this question:

Rounding to the nearest dollar, σX = 3161
Answer:
6
Step-by-step explanation:
46+4x=-6+76
46+4x=70
4x=24
x=6