CRE 5 - Coin Toss | Modern Math - Probability
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If a coin is tossed twice what is the probability that same face turns up both times?
- (a)
1/2
- (b)
1/4
- (c)
1
- (d)
None of these
Solution
Discuss
ReportIf a coin is tossed thrice what is the probability that at least one head shows up?
- (a)
1/8
- (b)
7/8
- (c)
3/4
- (d)
None of these
If three fair coins are tossed randomly 175 times and it is found that three heads appeared 21 times, two heads appeared 56 times, one head appeared 63 times and zero head appeared 35 times. What is the probability of getting three heads.
- (a)
0.22
- (b)
0.35
- (c)
0.12
- (d)
None of these
Suppose a fair coin is randomly tossed for 75 times and it is found that head turns up 45 times and tail 30 times. What is the probability of getting a head?
0.6
- (a)
0.5
- (b)
0.4
- (c)
None of these
A person tosses a coin. If head comes up he gets Rs. 20 but loses Rs. 10 if tail comes up. What is his expected value?
If a coin is tossed thrice what is the probability of getting exactly 2 heads?
- (a)
1/8
- (b)
7/8
- (c)
3/8
- (d)
None of these
If a coin is tossed four times what is the probability that same face does not show up in any two consecutive tosses?
- (a)
1/8
- (b)
7/8
- (c)
3/8
- (d)
None of these
An unbiased coin is tossed a fixed number of times. If the probability of getting 5 heads equals the probability of getting 6 heads, then what is the probability of getting 1 head?
- (a)
5/1024
- (b)
13/2048
- (c)
11/2048
- (d)
None of these