Use the graph to answer the following questions. A B C (a) What is the shape? Select an ans (b) Which one is the mean? ? (c) Which one is the median? ? v (d) Which one is the mode? ? v

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Joselyn hopes to receive a grade of B or better in her statistics class. Currently she has scored 75, 83, and 81 on her three in-class tests and also has a homework average of 88. Her professor calculates the class grade by finding the mean of five grades: three in-class tests, the homework average and the final exam. What is the minimum score Joselyn must earn on the final exam to have a class grade (mean) of 80? A. 67 B. 95 C. 70 D. 73

Eugene must take four exams in a geography class. If his scores on the first three exams are 91, 67, and 82, what score does he need on the fourth exam for his overall mean to be the following? (a) at least 70 (b) at least 80

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Answer for this multiple choice questions A,B,C or D

What is the median?

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Scenario: A pediatrician wants to determine the relation that may exist between a child’s height and head circumference.  She randomly selects eleven 3-year old children from her practice, measures their heights and head circumference, and obtains the data shown below:   Child’s Height and Head Circumference   Height (inches) Head Circumference  (inches) 27.75 17.6 24.5 17.3 25.5 17.4 26 17.5 25 17.1 25.75 17.8 26.5 17.5 27 17.7 26.75 17.5 26.75 17.8 27.5 17.7   If the pediatrician wants to use height to predict head circumference, determine which variable is the explanatory variable and which is response variable.   Draw a scatter diagram of the data.   Draw the best fit line on the scatter diagram.   Does this scatter diagram show a positive, negative, or no relationship between a child’s height and the head circumference?

The temperatures in °C, at midday in a German city during summer of 2017, were mersured for eight days and the results are recorded below. 21, 12, 15, 12, 24, T, 30, 24 The mean temperature was found to be 21°C. (a) Find the value of T. (b) Write down the mode. (c) Find the median.