Coins
You flip 5 coin. What is the probability of flipping a head?
1/2×1/2×1/2×1/2×1/2=1/32
What is the probability of rolling a three on a 4 sided die?
1/4
You have a bag containing 160 yellow, 523 green and 317 orange candies. What is the probability of picking a yellow or orange.
477/1000
What is the probability of picking a 100 in a deck of cards?
0(1~13 in cards)
How probability Blood type O-type in Japanese baby?
about1/3
You flip 14 coin. What is the probability of flipping a head at the second coin?
1/2
Second coin has a 1/2head and 1/2tail.
You roll 3 dice. What is the probability of rolling a 5 and 2 and 4? Order does not matter.
1/36
You have a bag containing 4 gold, 5 silver and 6 black candies. You take forteen candies without replacement. What is the probability of getting all candies silver?
0(silver candies are only 5 in a bag.)
You draw 1 card from a deck of 52 cards. What is the probability it is not a diamond nor a club?
1/2
How probability twins in Japanese baby?
about1/100
You flip 9 coins. What is the probability of flipping at least 1 heads?
1-1/2×1/2×1/2×1/2×1/2×1/2×1/2×1/2×1/2
=511/512
You roll 3 dice. What is the probability of rolling a sum of fifteen or four?
{366,636,663,456,465,546,564,645,654,555,
112,121,211}
13/216
You have a bag containing 3 yellow, 3 green and 3 orange balls. You pick 4 balls without replacement. What is the probability of picking at least 1 all color?Order does not matter.
1/27
You draw 1 card from a deck of 52 cards. What is the probability it is not a prime number nor a club?
6/13
How Probability of meteorite falling on your head?
about1/75000
You flip 5 coins. What is the probability of flipping at least 3 tails?
1/2
You roll 6 dice. What is the probability the six numbers are different?
1/6×1/5×1/4×1/3×1/2
=1/720
You have a bag containing 450blue, 350red, 200pink, 150brown, 850green, 500purple and 500brown balls. You pick 1 balls. What is the probability of picking 1 brown? Order does not matter.
13/60(Brown is 150+500 in bag)
You draw 4 card from a deck of 52 cards. What is the probability of getting 4 King from a deck of cards?
24/(52×52×52×52)=24/7311616=1/913952
How probability of winning the Japanese lottery first prize?
about1/20000000
You flip 15 coin. What is the probability of flipping a head?
1/32768
You roll 700 dice. What is the probability the seven-hundred numbers are same? Please choose one.
①1/(700!)
②1/(6^700)
③6/(6^700)
④6/(699!)
③6/(6^700)
{11111...,22222...,33333...,44444...,55555...,
66666...,}
You have a bag containing 28 yellow, 4 green and 8 orange candies. You take seven candies with replacement. What is the probability of getting 7 green?
1/10000000(ten million)
You draw 2 card from a deck of 52 cards. What is the probability of getting at least 1 Diamond or a King from a deck of cards?
1-(36/52×35/51)
=116/221
How probability you meet someone next to you?
about1/5023650000000000000000000000