Thursday, June 17, 2010

Statistics and Probability Solutions


We have some Statistics and Probability Solutions for the respective problems .Most of the problems are from the collection of wordproblem in probability .
Question :-

A card is drawn from a well-shuffled pack of cards and its suit is noted. (spade, clubs, hearts or diamond). This trial is repeated 400 times and the Number of times each suit is drawn is given below.




When a card is drawn at random what is the probability that it is
1) a diamond
2) a black card
3) not a spade
Answer:

1) Total number of trials = 400
Number of trials in which a diamond showed up = 76
P (the card drawn is a diamond)



2) Number of times a black card showed up = 96 + 108 = 204
P (the card drawn is black)



3) Number of times a card other than a spade showed up = 108 + 120 + 76 = 304
P (the card is not a spade)

No comments:

Post a Comment