1) A spinner and a fair number cube are used in a game. The spinner has an equal chance of landing on 1 of 4 colors: red, blue, yellow, or green. The faces of the cube are labeled 1 through 6. What is the probability of a player spinning the color red and then rolling a 5 or 6? A. 3/10 B. 1/8 C. 1/12 D. 1/24 4) A retail store had total sales of $436, $650, $530, $500, $650, $489, and $423 last week. Which measure of data would make the store’s sales last week appear the most profitable? A. Mode B. Median C. Mean D. Range 2) Sharon played an electronic game. There were 15 questions, of which she answered 3 incorrectly. At this rate, how many questions should Sharon expect to answer incorrectly if she answers a total of 135 questions? B. 27 A. 45 C. 9 D. 5 3) Fiona has a bag containing 6 red, 8 blue, 5 green, 9 yellow, and 2 white marbles that are all the same size and shape. What is the probability of randomly choosing a white marble on the first pick, replacing it, and then randomly choosing a green marble on the second pick? B. 1/15 A. 1/6 C. 1/87 D. 1/90 5) A rancher sold 100 calves. He recorded the following data about these animals. Which measure of data could be used to calculate the total weight of the calves sold? A. Mean B. Median C. Mode D. Range B. As Betsy made fewer phone calls, the cost of the phone calls decreased. A. As Betsy made more phone calls, the cost of the phone calls increased. C. As Betsy decreased the number of minutes on the phone, the number of phone calls decreased. 6) The scatterplot below shows the cost of phone calls Betsy made to her brother overseas in relation to the number of minutes per phone call. Based on the information in the scatterplot, which statement is a valid conclusion? D. As Betsy increased the number of minutes on the phone, the cost of the phone calls increased. 7) Miss Koziel eats a bowl of her favorite cereal every morning. The table below shows the nutritional content of one serving of this cereal. Which graph best represents these data? A. B. C. D. 8) The table below shows the number of students in each grade at Madison Junior High who are enrolled in various musical groups. Which graph best represents the data in the table? A B D C 9) Julie is going to conduct a school survey for a research paper. Which sampling method is NOT a good representation of her school’s student population? A.Survey every fifth student as all students exit the main door at school. B. Survey all students at a shopping mall. C. Survey ¼ of all the students at school randomly. D. Survey all the students whose names have been randomly drawn by the school’s computer. B. The vertical bars are too wide. C. The intervals are too small. D. The scale for the number of packages goes higher than 90. A. The scale for the number of packages does not start at zero.10) The graph below displays the weights of packages shipped from a post office on Tuesday. According to the information in the graph, no 10- to 12- pound packages were shipped. Which statement explains why this representation may be inaccurate? |