A card was selected at random from a standard deck of cards. The suit of the card was recorded, and then the card was put back in the deck. The table shows the results after 40 trials.
What is the relative frequency of selecting a diamond?
Responses
23%
25%
30%
42%
Outcome Club Diamond Heart Spade
Number of trials 8 12 11 9
The total number of trials was 40. To find the relative frequency of selecting a diamond, we look at the number of trials where a diamond was selected (12) and divide it by the total number of trials.
Relative Frequency = Number of trials selecting a diamond / Total number of trials
Relative Frequency = 12 / 40
Relative Frequency = 0.30 or 30%
Therefore, the correct answer is 30%.