A group of patients select from among 38 numbers, with 18 odd numbers (black) and 18 even numbers (red), as well as 0 and 00 (which are green). If a doctor pays $7 that the outcome is an odd
number, the probability of losing the $7 is 20/38 and the probability of winning $14 (for a net gain of
only $7, given you already paid $7) is 18/38
If a doctor pays $7 that the outcome is an odd number, how would you figure out what is the doctors
expected value is?

$2.95

Step-by-step explanation:

Given: Probability of losing the $7 =

Probability of winning $14  =

Then, the expected value = (- $7)  x ( Probability of losing the $7) + $14 x(Probability of winning $14)

=

=

=

∴ If a doctor pays $7 that the outcome is an odd number, the doctor's

expected value is $2.95.

can you give me more detail on this! ?

step-by-step explanation:

i leave the calculator work to you.

7. diameter 4 miles, circumference 4π miles

8. radius 0.2 miles, circumference 0.4π miles

[this is a bad problem because the actual radius of a car on the track is less than 0.2 miles so the answer is less than 0.4π miles]

9. radius 6 feet, circumference 12π feet

10. diameter 14 cm, circumference 14π cm

11. diameter 4.8 feet, circumference 4.8π feet