Minnie is doing a survey to find the time her classmates spend playing musical instruments. she asks the following question:
which student spends the most time playing musical instruments?
part a: describe the data you would expect her to collect from this question. (5 points)
part b: explain whether this is a statistical question. if this is not a statistical question, then modify the question to make it statistical. (5 points)
question 2 (essay worth 10 points)
(08.02 mc)
the number of pets owned by eight classmates is shown below:
1, 3, 2, 2, 1, 3, 3, 1
part a: what is the mean of the data? show your work. (4 points)
part b: use your answer from part a to calculate the mean absolute deviation for the data. show your work. (6 points)
question 3 (essay worth 10 points)
(08.03; 08.04 mc)
a group of 17 students participated in a quiz competition. their scores are shown below:
score 0–4 5–9 10–14 15–19 20–24
number of students 4 5 2 3 3
part a: would a dot plot, a histogram, or a box plot best represent the data shown above. explain your answer. (4 points)
part b: provide a step-by-step description of how you would create the graph named in part a. (6 points)
question 4 (essay worth 10 points)
(08.05; 08.06 hc)
the box plot below shows the total amount of time, in minutes, the students of a class surf the internet every day:
a box plot is shown. the left-most point on the plot is 20 and the right-most point is 95. the box is labeled 35 on the left edge and 60 on the right edge. a vertical line is drawn inside the rectangle at the point 55.
part a: list two pieces of information that are provided by the graph and one piece of information that is not provided by the graph. (4 points)
part b: calculate the interquartile range of the data, and explain in a sentence or two what it represents. (4 points)
part c: explain what affect, if any, there will be if an outlier is present. (2 points)