AnswersCARE_24_25_TX-Mathematical Models with Applications BVariability

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The data below represents the relationship between the total fat and the total calories in fast food. Draw a scatter plot for the data. Total Fat (grams) 9 13 21 30 31 28 Total Calories 260 320 420 530 560 560 a. c. b. d. Please select the best answer from the choices provided

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The table below indicates the variation in the arm span of a person with respect to height. Draw a scatter plot for the data. Arm Span (cm) 156 160 165 170 170 173 177 184 188 194 196 200 Height (cm) 162 155 166 170 167 185 173 180 188 193 184 186 a. c. b. d. Please select the best answer from the choices provided

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Determine whether the graph shows a positive correlation, a negative correlation, or no correlation. If there is a positive or negative correlation, describe its meaning in the situation. Determine whether a scatter plot of the data for the following situation might show a positive, negative, or no relationship. Explain your answer.

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positive relationship; as the age of a car increases, the value of the car increases.
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positive relationship; as the age of a car increases, the value of the car decreases.
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negative relationship; as the age of a car increases, the value of the car increases.
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negative relationship; as the age of a car increases, the value of the car decreases.
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The scatter plot shows the study time and test scores for the students in Mrs. Johnson’s English Literature class. Which of the following is an appropriate score for a student who studies for 1.5 hours?

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78
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94
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81
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The table below shows the median selling price of houses in the 1990s. Draw a scatter plot based on the data. Year 1990 1991 1992 1993 1994 1995 1996 Price ($ thousands) 130 135 122 145 151 139 61 a. c. b. d. Please select the best answer from the choices provided

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Employee annual wages at a plant rose steadily, but very gradually, from one year to the next during one 5-year period. An employee representative wants to show that wages are rising minimally. Examine the following charts and decide which graph the employee representative would want to use and why. Graph A Graph B

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The employee representative would want to use Graph B to show how much the employee wages have gained over the 5-year period.
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The employee representative would want to use Graph B to show the decrease in slope.
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The employee representative would want to use Graph A to show that wages have been at a constant level for the past 5-year period.
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The employee representative would want to use Graph A to show that wages are rising minimally because Graph A appears to show the wages increasing at a much slower rate than Graph B.
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There are four typical measures of the central tendency of a frequency distribution. Which of the following is NOT a measure of central tendency?

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mean
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median
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mode
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method of least squares
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This list shows the age at which 38 U.S. Presidents died. 46 58 64 68 73 80 90 49 60 65 70 74 81 93 53 60 66 71 77 83 56 63 67 71 78 85 56 63 67 71 78 88 57 64 67 72 79 90 Before you can make a frequency table, you need to decide how to set up the age intervals. What is the BEST way to group these ages into six intervals? a. c. b. d. Please select the best answer from the choices provided

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The table below shows the scores on a science test.John75Brett80Elizabeth90Cindy100Jake75Kenji85Rick80Joy80Raul90Suni85

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Consider the following data: 5 8 2 1 7 1 Determine the standard deviation by filling in the table as part of your calculation. 5 4 1 1 8 4 4 16 2 4 -2 4 1 4 7 4 1 4 a. 8 b. c. 2 d. Please select the best answer from the choices provided

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The table below shows the measurements M1 and M2 taken by the same analyst. Draw a scatter plot of the data. M1 0.243 0.352 0.357 0.469 0.444 0.555 0.552 M2 0.245 0.348 0.361 0.470 0.439 0.560 0.548 a. c. b. d. Please select the best answer from the choices provided

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The data below represents the relationship between the number of incidences of UFO sightings in late 1930s and early 1940s. Draw a scatter plot for the data. Year of Incidence 1936 1937 1938 1939 1940 1941 1942 1943 1944 1945 1946 Number of Incidences (percent) 0.9 0.8 0.8 1.3 1.4 1.2 1.7 1.8 1.6 1.5 1.5 a. c. b. d. Please select the best answer from the choices provided

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The table below shows the scores on a science test.John75Brett80Elizabeth90Cindy100Jake75Kenji85Rick80Joy80Raul90Suni85

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