A bag contains 400 colored 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
What is the probability of the spinner not landing on red?
7/10 (or any variation)
If you spin the spinner and toss the coin at the same time, how many possible outcomes are there?
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
The probability of catching flu is 0.38. What is the probability of not catching flu?
0.62
When rolling a dice, what is the probability of throwing a square number?
2/6 (or any variation)
What is the probability of getting a number greater than 5?
3/8
What is the probability of someone being born in January?
1/12
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
A tombola has balls numbered from 1 to 50. What is the probability of picking a prime number?
15/50 (or any variation)
Solve the proportion.
z = 5
Solve the proportion.
b = 48
Solve the proportion.
x = 3
Solve the proportion.
z = 18
Solve the proportion.
c = 23
