Question

We toss 3 coins 100,000 times. How many times do we expect to see "Exactly 1 Head" appearing?
A.)12,500 B.)37,500 C.)3,750 D.)50,000

Answer 1

toss 3 coins once and the probability of 1 head is 3/8

so from 1000000 tosses the expected number of 1 head is

3/8 x 1000000 =

just evaluate for the answer

Answer 2

outcomes = 2^3 = 8 i.e HHH, HHT ,HTT, HTH, THH, THT, TTH, TTT
This means P(1head) = 1/8
from 100,000 tosses it becomes 1/8 x 100,000 = 12,500

Answer 3

i did the problem the way campbell told me to and i got 100% , i dont think your answer is correct gita :/

Answer 4

thanks both of you for taking the time to help me out though

Answer 5

hope it helps.

Answer 6

you welcome