You are trying to decide whether or not to book a cheap flight to fly home from ncsu after your final exams, but you're not sure when your last exam will be. you think there is a 30% chance that your last exam will be scheduled after the last day that you can get a seat on the cheap flight. if it turns out that your last exam is scheduled after the last day that you can get a seat on the cheap flight, then you will have to cancel the flight, resulting in a loss to you of $150. if you can take the cheap flight home you will save $100. question 1. if you book the cheap flight, what is your expected gain? dollars. question 2. if you book the cheap flight, what is the standard deviation of your gain? dollars.

Expected gain $25

Standard deviation of the gain $134.63

Step-by-step explanation:

Let C, T the events

C = You have to cancel the flight

T = You can take the flight

P(C) = 30% = 0.3 with a “gain” of -$150

P(T) = 70% = 07  with a gain of $100

Expected gain E

E = -150P(C) + 100P(T) = -150*0.3 + 100*0.7 = -45 + 70 =$25

Standard deviation of your gain

glide reflection.

its mainly because the pattern will be infinite and will never end. it will look like a gilder or like a filpbook when set to motion.

step-by-step explanation:

1. practice, practice & more practice

2. review errors

3. master the key concepts

do not try to memorise the processes.

4. understand your doubts.

5. create a distraction free study environment

6. create a mathematical dictionary

7. apply maths to real world problems.