A LEVEL APPLIED MATHEMATICS SEMINAR QUESTIONS 2023
STATISTICS
1. (a). A certain set of data contain p zeros and q ones. Find the
(i). Mean
(ii). Standard deviation of the data
(b) (i). Calculate the mean and standard deviation of the four number 2, 3, 6, 9.
(ii). Two number 𝑎 and 𝑏 are to be added to this set of four number in bi), such that the mean is
increased by 1 and the variance is increased by 2.5. Find 𝑎 and 𝑏
(c) The heights and corresponding masses of 7 tourists were taken, and ranked as shown.
Calculate the spearman’s’ rank correction coefficient for this data. Comment on your result
RANKS
HOW TO OPEN FILE
Once the download is complete, navigate to the location where you saved the file. You can now open and use the file as needed.
Thank you for choosing Exinet Academy as your educational resource. We wish you the very best in your studies and future endeavors. Feel free to explore our website for more useful materials, and don't hesitate to let us know if there's anything else we can do to support you.
#xnetAcademy
- Version
- Download 488
- File Size 760.13 KB
- File Count 1
Exinet Academy