Excellent Experiments
An experiment showed that the number 2 was rolled 6 times out of 12. This percent represents its probability.
What is 50%
Derek has a number cube where the probability of rolling a 3 is 5/6. These are the faces on his cube.
What is 3,3,3,3,3,?
Looking at spinner A, this is the liklihood of spinning any colour but yellow.
What is 75% or 3/4 or 0.75?
An experiment showed that heads was flipped 25% of the time, so heads was flipped this often.
What is 75%?
A spinner has equal sized sections numbered 1-8. What is the likelihood of spinning a 4 (fraction, decimal and percent?)
What is 1/8, 0.125 or 13%?
Looking at spinner B, this is the likelihood of spinning an odd number.
What is 4/8, 50% or 0.5?
An experiment showed that the tails was flipped 75% of the time, so that would be this many flips out of 120.
What is 90?
A spinner is divided into 5 equal sections, each with one of the numbers from 1-5. With 50 spins, Lisa should expect to land on the number 3 this many times.
What is 10?
Looking at spinner B, this is the likelihood of spinning a multiple of 3.
What is 2/8, 0.25 or 25%?
In an experiments, 85 kids were surveyed. 24 chose soccer, 15 chose baseball, 19 chose tennis and this number of kids chose basketball.
What is 27?
Jane has a package of 40 cards. 30 are red and 10 are black.
If she randomly picks 8 cards, how many should she expect to be red?
What is 6?
(75% of 8 draws is 6 cards.)
Looking at spinner A, this is the theoretical probability of the number of times spinning green with 100 spins.
What is 25?
It is observed that when walking into an ice cream store, 70% of people choose vanilla and only 30% of people choose chocolate. If there are 30 customers, this many will choose vanilla.
What is 21 customers?
A spinner has 12 equal sections labelled with the numbers 1-12. This is the likelihood Freda will spin a multiple of 3 on her first spin.
(3,6,9,12 are the possible answers) What is 4/12, 1/3 or 33%?
Looking at spinner B, this is the likelihood of spinning a prime number.
What is 4/8, 0.50 or 50%?
(remember, 1 is not prime!)