Question

Greg has four different coloured cards in a box: yellow,red,blue, and green. He randomly selects one card, records the color, and then replaces the card in the box. If Greg does this 300 times, how many yellow cards should he expect to select?

Answer 1

Answer:

75

Step-by-step explanation:

There are four different colors, and each color has an equal chance of being selected. Therefore, the probability of selecting a yellow card on any single draw is 1/4

Expected number of yellow cards = Probability of selecting yellow card * Total number of draws

= 1/4 x 300

= 75

Therefore, Greg should expect to select approximately 75 yellow cards in 300 draws.