Grade 50 70 47 75 82 79 79 88 81 45 90 81 Time Spent (Hrs)...

Grade	50	70	47	75	82	79	79	88	81	45	90	81
Time Spent (Hrs)	166	76	30	100	100	62	9	17	13	29	1	29

a. Create a scatterplot

b. what is the correlation, slope and y-intercept?

c. Using your regression equation make a prediction of the grade earned if a student spent three hours completing the exercise

d. how confident are you in this prediction?

Expert Solution

orchestra answered 1 year ago

82, 72, 83, 75, 80, 78, 82, 73, 60, 79, 80, 78, 83, 81 what is...

82, 72, 83, 75, 80, 78, 82, 73, 60, 79, 80, 78, 83, 81 what is the Q1, median, Q3 and the IQR with any outliers

57, 69, 70, 71, 74, 77, 79, 80, 80, 80, 80, 81, 81, 82, 85, 85,...

57, 69, 70, 71, 74, 77, 79, 80, 80, 80, 80, 81, 81, 82, 85, 85, 86, 88, 91, 95, 95, 100 1) Create a relative frequency table for these data. 2) Create a histogram for these data and comment on the shape of the distribution (skewed, symmetric, etc). 3) Create a boxplot for the data (you’ll need to report the median, quartiles, and outliers).

85 1,810 90 4,825 79 438 82 775 84 1,213 96 8,692 88 2,356 76 266...

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Exam 1 Scores 91, 83, 75, 85, 90, 80, 67, 82, 88, 87, 95, 91, 73,...

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z = [ 100 93 90 89 80 79 78 75 67 60 45 42 41...

z = [ 100 93 90 89 80 79 78 75 67 60 45 42 41 40 30 20 15 12 10 9 2 1] Using MATLAB, Write fully vectorized code (no loops) to find index number of which the numbers have decreased by 40. Print results to command window.

Data Set: 14, 16, 21, 34, 38, 39, 41, 45, 50, 53, 82, 90 - Find...

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13.Data Set : 41, 18, 21, 34, 90, 39, 41, 14, 45, 53, 50, 82, 38,...

13.Data Set : 41, 18, 21, 34, 90, 39, 41, 14, 45, 53, 50, 82, 38, and 92 a) Compute the percentile of 38 b) Find the 90th percentile c) Find the five number Summary d) Construct a modified Box-Plot e) Determine if data has any potential outliers and explain why?

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