THE QUESTION ABOVE IS BASED ON THE FOLLOWING BAR GRAPH. STUDY THE GRAPH, AND THEN ANSWER EACH QUESTION BASED ON THE INFORMATION SHOWN IN THE GRAPH PERCENT 35 30 25 20 15 10 5 O AMOUNTS OF NORMAL MONTHLY RETIREMENT BENEFITS UNDER PENSION PLANS FOR $3000 A YEAR AND 30 YEARS SERVICE under 100 $100 to 110 110 to 120 120 10 130 130 to 140 140 to 150 150 to 175 Plans Workers 175 to 200 200 to 225 Based on a study of 300 pension plans under collective bargaining covering approximately 5,857,000 workers Select the single best answer: OA the majority of pension plans now in existence is the result of collective bargaining OB collective bargaining has tended to increase the retirement benefits paid to workers C. pension plans providing relatively lower benefits than other pension plans cover the majority of workers. D. the aim of collective bargaining is to achieve the highest possible retirement benefits for the greatest number of workers

A raffle is going to be held in which the winner will get $200. If 1000 tickets are to be sold, what is the fair price for a ticket?

Write the answers as a fraction in reduced form.Do you know what regifting is? It is loosely defined as "giving someone a gift that was originally given to you without telling the recipient the origin of the gift." Now that you know, how often do you engage in regifting? In a survey of 5555 persons, the answers to that question were as follows. Response to the question: How often do you engage in regifting?Very often → 146 votesEvery now and then → 819 votesNot very often → 1756 votesNever → 2808 votesI'm not sure → 26 votesCurrent number of voters: 5555 If one of the persons is selected at random, what is the empirical probability of the following? (a) The person very often engages in regifting. (b) The person never engages in regifting.(c) If you get a gift and you assume that the results of the survey apply to that gift, what is the probability that you are getting a regift? Assume that the people who give regifts are the ones that did not answer "Never."

Ms. Hammell and Mrs. Clark drew marbles from a mystery jar of 100 marbles. Ms. Hammell drew 55 pink marbles and Mrs. Clark drew 70 pink marbles.  Find p hat, standard error, and margin of error for Ms. Hammell and Mrs. Clark.

A school is going to offer a new class next year. The school polls the students to see which class they would prefer. 47% respond that they would like East Asian History. 53% respond that they would like Southern African Studies. The margin of error for the poll is +4%. Explain whether the poll clearly indicates the majority's preference.

198 students wear pretty costumes, 93 students wear traditional costumes. About how many students plan to wear a pretty or traditional costume?

Fill in the remaining entries in the two-way table shown to the right. A survey of 140 patrons at a restaurant gave the preferences for entrees and drinks shown to the right. Fill in the missing entries in the table. Vegetarian Meat/Fish 51 Wine No Wine Total 38 Total 66 140

To determine the proportion of voters who favor a certain candidate for governor, the campaign staff phones 2500 residents of the state chosen from state property tax rolls. The 2500 residents represent what?