Question
4) A botanist opened a sample of 50 bean pods and counted the number of beans in each pod. The results obtained were as follows:
4) A botanist opened a sample of 50 bean pods and counted the number of beans in each pod. The results obtained were as follows:
3 | 6 | 5 | 2 | 4 | 1 | 0 | 3 | 0 | 4 |
0 | 0 | 3 | 1 | 2 | 0 | 2 | 4 | 2 | 6 |
6 | 6 | 2 | 0 | 0 | 0 | 1 | 0 | 4 | 2 |
5 | 3 | 6 | 1 | 2 | 6 | 5 | 0 | 4 | 3 |
2 | 3 | 2 | 1 | 5 | 2 | 3 | 4 | 1 | 5 |
a) Fill in the frequency table for these data. (2 points each)
Number of Beans in Pod | Number of Bean Pods |
---|---|
0 | |
1 | |
2 | |
3 | |
4 | |
5 | |
6 |
b) Determine the mode of the data. (5 points) Mode = Round your answer to 2 decimal places as needed. c) Determine the median of the data. (5 points) Median = Round your answer to 2 decimal places as needed. d) Calculate the mean (XX) of the data. (5 points) Mean = Round your answer to 2 decimal places as needed. e) Calculate the standard deviation (SS) using your graphing calculator. (5 points) Hint: Also verify that the mean you calculated in part d matches the mean from the calculator. Standard deviation = Round your answer to 2 decimal places as needed. f) Determine the range of variation: (2 points each) (XS,X+S)(X-S,X+S) = (,) Round your answers to 2 decimal places as needed. g) Calculate what percent of the data values are within one standard deviation of the mean. Hint: Create a histogram on paper and shade the included region(s) on your histogram to help visualize the shaded area and help with calculations. Total area of shaded region = (4 points) Round your answer to 2 decimal places as needed. Percent of area within one standard deviation = % (3 points) Round your answer to 2 decimal places as needed.
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