unit 3 test: working with data
teacher graded question
directions: answer the following questions. make sure to show your work to earn full credit.
question:
the table shows the number of medical clinics and the number of bowling alleys in several cities.
clinics 14 1 6 5 10 6 11 8 6 16
bowling alleys 12 3 6 7 7 8 9 15 7 12
(a) create a scatter plot for the data.
(b) which ordered pairs form cluster?
(c) which point is an outlier?
(d) what is the liner regression equation?
(e) find the value of the correlation coefficient, r.
(f) find the value of the coefficient of determination, r2.

Steve had 48 chocolates but he decided to give 8 chocolats to each of his f coworkers. how many chocolates does steve have left

What is the similarity ratio of a cube with volume 729m^3 to a cube with volume 3375 m^3

Each of the following data sets has a mean of x = 10. (i) 8 9 10 11 12 (ii) 7 9 10 11 13 (iii) 7 8 10 12 13 (a) without doing any computations, order the data sets according to increasing value of standard deviations. (i), (iii), (ii) (ii), (i), (iii) (iii), (i), (ii) (iii), (ii), (i) (i), (ii), (iii) (ii), (iii), (i) (b) why do you expect the difference in standard deviations between data sets (i) and (ii) to be greater than the difference in standard deviations between data sets (ii) and (iii)? hint: consider how much the data in the respective sets differ from the mean. the data change between data sets (i) and (ii) increased the squared difference îł(x - x)2 by more than data sets (ii) and (iii). the data change between data sets (ii) and (iii) increased the squared difference îł(x - x)2 by more than data sets (i) and (ii). the data change between data sets (i) and (ii) decreased the squared difference îł(x - x)2 by more than data sets (ii) and (iii). none of the above