STAT3

according to a certain countries department of education, 40.9% of 3-year olds are enrolled in day care, what is the probability that a randomly selected 3-year-old is enrolled in day care

.409

in a certain card game, the probability that a player is dealt a particular hand is 0.3, explain what this possibility means, explain what this possibility means if you play this card game 100 times, will you be dealt this hand exactly 30 times why or why not?

The probability 0.3 means that approximately 30 out of every 100 dealt hands will be that particular hand, NO you will not be dealt this hand exactly 30 times since the probability refers to long-term behavior not short-term

a survey of 200 randomly selected High school students determined that 125 play organized sports a) what is the probability that a randomly selected High School student plays organized sports?_ b) interpret this probability

divide the second number with the first. If 1,000 High School students were sampled it would be expected that about 625 of them played organized sports

in probability, __ is any process that can be repeated in which the results are uncertain

experiment

bob is asked to construct a probability model for rolling a pair of fair dice he lists the outcomes as 2,3,4,5,6,7,8,9,10,11,12. Because there are 11 outcomes he reasoned the probability of rolling an eleven must be 1/11 what is wrong with bobs reasoning

the experiment does not have equally likely outcomes

what is the probability of an event that is impossible? suppose that the probability is approximated to be zero based on empirical results? does it mean the event is possible?

the probability is zero, but the event is still possible

in a probability model, the sum of the probabilities of all outcomes must equal 1

true

probability is a measure of the likelihood of a random phenomenon or chance behavior

true