A bag contains 5 red balls, 4 blue balls and 3 green balls.
Megan replaces the ball.
She picks a ball at random, notes the colour and replaces the ball.
She repeats this 60 times.
Calculate the number of times the ball is expected to be red or blue.
At a festival, 380 people out of 500 people questioned say that they are camping. There are 55300 people at the festival.
Calculate an estimate of the total number of people camping at the festival.
Suleika has six cards numbered 1 to 6.
She takes one card at random, records the number and replaces the card.
Suleika does this 300 times.
Find how many times she expects the number 5 or 6.