Question

A student randomly draws a card from a standard deck of 52 cards. He records the type of card drawn and places it back in the deck. This is repeated 20 times. The table below shows the frequency of each outcome.

Outcome Frequency
Heart 7
Spade 3
Club 6
Diamond 4


Determine the experimental probability of drawing a spade.
0.15
0.25
0.35
0.50

Answer 1

The experimental probability of drawing a spade is 0.15. This is calculated by dividing the number of spades drawn (3) by the total number of cards drawn (20).

Experimental probability = Number of successful outcomes / Total number of trials

= 3 / 20

= 0.15