3. The following table shows the results of a survey on internet access in the home. Each of 125 families was asked whether or not they had internet access in the home. The families were also categorized by their race. Use the table to answer the questions that follow. Race Internet No Internet Total 15 23 Caucasian 22 37 Asian American African American 18 41 14 33 47 Total 52 73 125 a. What is the probability that one family selected at random would have an internet connection at home? b. What is the probability that one family selected at random would be Asian American? c. What is the probability that one family selected at random would be Asian American and have an Internet connection? d. What is the probability that one family selected at random would be either Asian American or have an Internet connection?

As part of a statistics project, a teacher brings a bag of marbles containing 700 white marbles and 300 red marbles. She asks her students to determine how many red marbles are in the bag without counting them.A student randomly draws 100 marbles from the bag. Of the 100 marbles, 33 are red.The target population consists of The 100 marbles drawn by the student The 1000 marbles in the bag None of the above The 33 red marbles drawn by the student The 300 red marbles in the bag The sample consists of The 1000 marbles in the bag The 100 marbles drawn by the student The 33 red marbles drawn by the student None of the above The 300 red marbles in the bag Based on the sample, the student would estimate that ------   marbles in the bag were red.

A sports franchise knows that 81% of their season ticket holders attend every home game.  The collect a random sample of size 250 from among last year's season ticket holders.  How likely are they to find that 200 or fewer attended every home game?   a. .657   b. .800   c. .343   d. .500

Answer.

A store manager gathers some demographic information from the store's customers. The following chart summarizes the age-related information they collected: