Question

mali performed an experiment with a standard deck of 52 cards. she wanted to see if the face cards (ace, king, queen, and jack) came up the expected number of times when she randomly selected 13 cards from the deck. mali noticed that the observed frequencies did not match the predicted frequencies. what does she need to change in her experiment to get closer to the predicted values based on the theoretical probability for all the face cards?

card	theoretical (predicted frequency)	experimental (observed frequency)
king	1	1
queen	1	1
jack	1	0

increase the number of trials
decrease the number of trials
use a new deck of cards
only use number cards

Explanation:

In probability - based experiments, increasing the number of trials makes the experimental results approach the theoretical values. With a small number of trials, there can be significant deviations.

Answer:

increase the number of trials