Question

Please can any one make me understand 'bout HIGH level probability question...?
*Conditions are
: Step wise Step problem solving
: and reasoning

Answer 1

Do you mean combinatorics?

Answer 2

ya similar to it

Answer 3

Take an example: Probability of getting 1 head in 5 tosses.

Answer 4

okay

Answer 5

Or wait, let's take this one: Probability of getting at least 1 head in 5 tosses.

Answer 6

okay its same

Answer 7

1) Getting at least 1 head means getting no tails.
2) P(Getting no tails) = 1 - P(Getting all tails)

Answer 8

kk

Answer 9

P(Getting all tails) = 1/2 * 1/2 * 1/2 * 1/2 * 1/2 = 1/32 right?

Answer 10

k

Answer 11

1 - 1/32 = 32/32 - 1/32 = 31/32

Answer 12

okay

Answer 13

Not getting all tails = 31/32 = Getting at least one head.

Answer 14

So, the final probability is 31/32. Did you understand?

Answer 15

k

Answer 16

thanx

Answer 17

You're welcome!

Answer 18

np

Answer 19

@Mimi_x3 is who you want lol