answersLogoWhite

0


Best Answer

The probability of a heads is 1/2. The expected value of independent events is the number of runs times the probability of the desired result. So:

100*(1/2) = 50 heads

User Avatar

Wiki User

โˆ™ 2010-05-23 11:49:47
This answer is:
User Avatar
Study guides

Algebra

20 cards

A polynomial of degree zero is a constant term

The grouping method of factoring can still be used when only some of the terms share a common factor A True B False

The sum or difference of p and q is the of the x-term in the trinomial

A number a power of a variable or a product of the two is a monomial while a polynomial is the of monomials

โžก๏ธ
See all cards
3.74
โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…
1027 Reviews

Add your answer:

Earn +20 pts
Q: A coin is tossed 100 times how many times would you expect to get heads?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

A six sided number cube is tossed 200 times how many times would you expect to get a one?

33


If a coin was tossed 1000 times what would be the probability that coin will land on heads?

1/2 or 0.5


If you flip a coin 150 times about how many times would you expect to get heads?

75


If you flip a coin 20 times how many times would you expect it to land on heads?

A fair coin would be expected to land on heads 10 times on average.


If you toss 2 coins simultaneously 400 times would you expect the deviation to be greate or less than it was in tossing them 40 times?

Less. The more times the coin is tossed, the more likely it will reflect the actual odds of .5 heads and .5 tails.


What does it mean to say that the chances of getting a head when a coin is tossed are one-half?

It means that if the coin were tossed an infinite number of times, half of the tosses would come up heads and half would be tails.


If you flipped a coin 150 times about how many times would you expect it to land on heads?

A fair coin would be expected to land on heads 75 times.


How many times would you expect the coin to land on heads if you flipped the coin 700 times?

Roughly half of the time, so about 350 times.


Suppose you toss a fair coin 75 times how many times would you expect to get heads?

A fair coin means that the probability of a head = probability of a tail = 1/2 So you would expect half the tosses to be heads, ie 1/2 x 75 = 371/2 heads. ...oooOOOooo... Having 1/2 a head doesn't seem possible, but when the question asks about expectation, it is saying: if you repeated the experiment lots of times, how often, on average, would the required result appear. So the expectation of heads when a fair coin is tossed 75 times is asking: if a fair coin was repeatedly tossed 75 times, what would be the (mean) average number of heads achieved? As more and more trials are done and the (mean) average of the number of heads got is taken, it will get closer and closer to 371/2 37 or 38 times. (Obviously, you can't have half of a time.) You will either get one or the other, and a fair coin means that either is just as likely. So, it should split evenly down the middle.


Two coins are tossed 50 times how many times do you expect to get two heads?

This is a binomial probability distribution The probability of exactly 2 heads in 50 coin tosses of a fair coin is 1.08801856E-12. If you want to solve this for how many times 50 coin tosses it would take to equal 1 time for it to occur, take the reciprocal, which yields you would have to make 9.191019648E11 tosses of 50 times to get exactly 2 heads (this number is 919,101,964,800 or 919 billion times). If you assume 5 min for 50 tosses and 24 hr/day tossing the coin, it would take 8,743,360 years. That is the statistical analysis. As an engineer, looking at the above analysis, I would say it is almost impossible flipping the coin 50 times to get exactly 2 heads or I would not expect 2 heads on 50 coin tosses. So, to answer your question specifically, I would say none.


If two coins are tossed 50 times how many times do you expect to get two heads?

This is a binomial probability distribution The probability of exactly 2 heads in 50 coin tosses of a fair coin is 1.08801856E-12. If you want to solve this for how many times 50 coin tosses it would take to equal 1 time for it to occur, take the reciprocal, which yields you would have to make 9.191019648E11 tosses of 50 times to get exactly 2 heads (this number is 919,101,964,800 or 919 billion times). If you assume 5 min for 50 tosses and 24 hr/day tossing the coin, it would take 8,743,360 years. That is the statistical analysis. As an engineer, looking at the above analysis, I would say it is almost impossible flipping the coin 50 times to get exactly 2 heads or I would not expect 2 heads on 50 coin tosses. So, to answer your question specifically, I would say none.


If you toss three coins 10000 times how many times would you expect that exactly 2 heads appear?

The expected number is 3750.

People also asked