Basic Probability
What does the probability scale range from?
0 to 1
What is P (on Die)?
1/6
If there are 2 red out of 10 balls, what is P(red)?
1/5(or 2/10)
What is the probability of drawing any one specific card ?
1/52
What is the probability of rolling a number greater than 4?
2/6 = 1/3
What is the probability of certain event?
1
What is P (drawing ace) [from a standard deck]?
4/52 (which simplifies to 1/13)
3/10 means what percent?
30%
What is the probability of drawing a heart?
13/52 = 1/4
What is the probability of NOT flipping heads ?
1/2
What is the probability of an impossible event?
0
What is the probability of flipping heads?
1/2
A bag has 5 blue and 5 green balls. What is the P(green)?
5/10 = 1/2
What is the probability of drawing a king?
4/52 = 1/13
What is the probability of rolling a 2 and 5?
2/6 = 1/3
if the event has 3 favorable outcomes out of 8 total, What is the probability?
3/8
What is the probability of flipping heads twice in a row?
1/4
You pick a vowel from A,B,C,D,E. What is the probability?
2/5
What is the probability of drawing a red card?(hearts+ Diamonds=26 cards)
26/52 = 1/2
Flip a coin and roll a die. what is P (Heads AND 3)?
1/2 x 1/6 = 1/12
Convert 0.75 to a fraction?
3/4
What is the probability of rolling an even number on die?
3/6 = 1/2
A spinner has 4 equal sections.What is the probability of landing on one section?
1/4
What is the probability of drawing a face card? (Jack,Queen,King = 12 cards total)
12/52 = 3/12
What is the two-dice probability of a sum of 7?
6/36=1/6