The probability of choosing black is twice that of choosing green. What is the probability of choosing green?
0.2
Aká je pravdepodobnosť, že vrtuľa nedopadne na červenú?
7/10 (alebo variácia)
Aká je pravdepodobnosť, že sa niekto narodí v januári?
1/12
A weather forecaster states that the probability of it raining tomorrow is 3/7. what is the probability that it will not rain tomorrow?
4/7
What is the probability of getting a number greater than 5?
3/8
A company manufactures sports equipment. The probability that a piece of equipment will be faulty is 0.005 If 1000 pieces of equipment are made, approximate how many are likely to be okay?
995
The probability that a biased dice will land on a five is 0.3. If the dice is rolled 400 times,work out an estimate for the number of times the dice will land on a five.
120
Inými slovami, aká je pravdepodobnosť, že zajtra budete mladší ako dnes?
nemožno
A bag contains 400 coloured counters, which are either red, blue or green. There are 92 red counters. The probability that a blue counter is chosen is 0.13. Calculate the number of green counters.
256
A bag contains only red, green and blue counters. What is the probability of choosing a blue counter?
0.2
The probability of picking blue or green is the same. What is it?
0.22
A tombola has balls numbered from 1 to 50. What is the probability of picking a prime number?
15/50 (or any variation)
When rolling a dice, what is the probability of throwing a square number?
2/6 (or any variation)
What is the probability of someone being born on a Friday?
1/7
Ak roztočíte rozmetadlo a hodíte mincou súčasne, koľko možných výsledkov existuje?
12
The probability of catching flu is 0.38. What is the probability of not catching flu?
0.62