Someone i have been in this question for the longest. i need could someone pelase explain? question: given the probability p(a) =.4 and p(a u b) =.6, what is the probability p(b) if a and b are mutually exclusive? if a and b are independent? it's not a btw cause i got that wrong.
a) 2, .4
b) .2, .33
c) .33, .2
d) .6, .33
e) .6, .4

Arefrigeration system at your company uses temperature sensors fixed to read celsius (°c) values, but the system operators in your control room understand only the fahrenheit scale. you have been asked to make a fahrenheit (°f) label for the high temperature alarm, which is set to ring whenever the system temperature rises above –10°c. what fahrenheit value should you write on the label?