Station #1: Use my graph paper to record your answer



10/5/07

Warm up:

Check your homework on the overhead

Notes: None – Shortened periods today

Calculator needs to be used for each of the four stations below.

Station #1: Use my graph paper to record your answer.

| |On a science quiz, 20 students received the following scores: 100, 95, 95, 90, 85, 85, 85, 80, 80, 80, 80, 75, 75, 75, |

| |70, 70, 65, 65, 60, 55. Construct a statistical graph, such as a histogram to display this data. [Be sure to title the |

| |graph and label all axes or parts used.] If you use your calculator to do this, write the steps on your graph paper. |

| |If you do it by hand, I should see a frequency chart. |

| | |

| |[pic] |

| | |

Station #2: Use the graph paper for this station.

| |The following set of data represents the scores on a mathematics quiz: |

| |58, 79, 81, 99, 68, 92, 76, 84, 53, 57, |

| |81, 91, 77, 50, 65, 57, 51, 72, 84, 89 |

| |Complete the frequency table below and, on the accompanying grid, draw and label a frequency histogram of these scores.|

| |Enter the data in the calculator – Sort and then record in the frequency table. |

| |Create the Histogram in the calculator and than record the answer below. |

| |[pic] |

| | |

| |[pic] |

Station #3: Use your own paper and the calculator to answer these questions.

| |The ages of five children in a family are 3, 3, 5, 8, and 18. Which statement is true for this group of data? |

| |(1) mode > mean (3) median = mode |

| |(2) mean > median (4) median > mean |

| |Jorge made the accompanying stem-and-leaf plot of the weights, in pounds, of each member of the wrestling team he was |

| |coaching. |

| |109,173,141,161,167,134,138,123,168,128,123,168,178,145,168,145 |

| | |

| |What is the mode of the weights? |

| |(1) 145 (3) 152 |

| |(2) 150 (4) 168 |

| |What was the median high temperature in Middletown during the 7-day period shown in the table below? |

| | |

| |[pic] |

| | |

| |(1) 69 (3) 71 |

| |(2) 70 (4) 73 |

| |On an English examination, two students received scores of 90, five students received 85, seven students received 75, |

| |and one student received 55. The average score on this examination was |

| |(1) 75 (3) 77 |

| |(2) 76 (4) 79 |

Station #4: Use your own paper and the calculator to answer these questions.

| |Rosario and Enrique are in the same mathematics class. On the first five tests, Rosario received scores of 78, 77, 64, |

| |86, and 70. Enrique received scores of 90, 61, 79, 73, and 87. How much higher was Enrique’s average than Rosario’s |

| |average? |

| |(1) 15 points (3) 3 points |

| |(2) 2 points (4) 4 points |

| |The accompanying stem-and-leaf plot represents Ben’s test scores this year. |

| |65,73,81,96,68,73,83,99,73,83,99,73,86,73,87,79 |

| | |

| |What is the median score for this set of data? |

| |(1) 73 (3) 80 |

| |(2) 79 (4) 81 |

| |The accompanying graph shows the high temperatures in Elmira, New York, for a 5-day period in January. |

| | |

| |[pic] |

| | |

| |Which statement describes the data? |

| |(1) median = mode (3) mean < mode |

| |(2) median = mean (4) mean = mode |

| |From January 3 to January 7, Buffalo recorded the following daily high temperatures: 5°, 7°, 6°, 5°, and 7°. Which |

| |statement about the temperatures is true? |

| |(1) mean = median (3) median = mode |

| |(2) mean = mode (4) mean < median |

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