if you flip two coins 28 times, what is the best prediction possible for the number of times both coins will…
if you flip two coins 28 times, what is the best prediction possible for the number of times both coins will land on heads? times
Answer
Explanation:
Step1: Calculate probability of both - heads
When flipping two fair coins, the total number of possible outcomes is (2\times2 = 4) (HH, HT, TH, TT). The probability (P) of both coins landing on heads is (\frac{1}{4}).
Step2: Use expected - value formula
The expected - value (E) of an event in (n) trials is given by (E=n\times P). Here, (n = 28) and (P=\frac{1}{4}). So (E=28\times\frac{1}{4}).
Step3: Perform the calculation
(28\times\frac{1}{4}=7).
Answer:
7