Calculate experimental probabilities and make predictions (relative frequency)

Maths

Repeat the experiment and compare her results to the first experiment

Roll the dice 10 times and record her results

Roll the dice 600 times and record her results

Marion rolls a dice thirty times and records the information in a relative frequency table. How could she make her experiment more reliable?

A and D occurred the same number of times.

It is difficult to say whether the spinner is biased because there have only been 20 trials.

A spinner labelled A, B, C and D is spun 20 times. The relative frequencies are in the table below. Which statement is not true?

A dice is rolled and a fair coin is tossed. Use the table to find the probability of getting an odd number and a tail.

Students in year 7 were asked how they travelled to school. Work out the probability a student who travels by bus is selected.

Students in year 7 were asked how they travelled to school. Work out the probability of selecting a girl who doesn’t walk is selected.