Mathematics, 14.12.2020 20:30, dmanvaldez
The amount of money college students spend each semester on textbooks is normally distributed with a mean of S195 and a standard deviation of S20. Suppose you take a random sample of 100 college students from this population. There would be a 68% chance that the sample mean (x) amount spent on textbooks would be between: A. S191 and $199. B. S193 and $197. C. S175 and $215. D. S155 and $235.
Answers: 3
Mathematics, 21.06.2019 20:30, cogger9348
3.17 scores on stats final. below are final exam scores of 20 introductory statistics students. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 57, 66, 69, 71, 72, 73, 74, 77, 78, 78, 79, 79, 81, 81, 82, 83, 83, 88, 89, 94 (a) the mean score is 77.7 points. with a standard deviation of 8.44 points. use this information to determine if the scores approximately follow the 68-95-99.7% rule. (b) do these data appear to follow a normal distribution? explain your reasoning using the graphs provided below.
Answers: 1
Mathematics, 22.06.2019 00:50, george8396
Melissa is purchasing a $160,000 home and her bank is offering her a 30-year mortgage at a 4.9% interest rate. in order to lower her monthly payment, melissa will make a 20% down payment and will purchase 3 points. what will her monthly mortgage payment be? a. $645.98 b. $650.46 c. $662.93 d. $606.69
Answers: 2
Mathematics, 22.06.2019 03:00, jasmindelvalle78
The curved part of the figure is the semicircle what is the best approximation for the area of this figure
Answers: 3
The amount of money college students spend each semester on textbooks is normally distributed with a...
Mathematics, 06.05.2020 00:36
Mathematics, 06.05.2020 00:36
Mathematics, 06.05.2020 00:36
Mathematics, 06.05.2020 00:36
Mathematics, 06.05.2020 00:36