24. Bob draws a simple random sample from an original population where the standard deviation is known to be o = 13. The sample size is n = 85 and the sample mean turns out to be x = 26. Find a 99% confidence interval for the population mean µ. А. (22.368, 29.632) В. (21.374, 28.441) С. (23.629, 30.837) D. (25.375, 26.984) 51, the sample 25. Bob draws a simple random sample from an original population. The sample size is n = mean turns out to be = 78, and the sample standard deviation turns out to be s = 14. Find the 95% confidence interval for the population mean H. А. (74.062, 81.938) В. (74.062, 83.948) С. (74.062, 85.958) D. (74.062, 87.968)

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Matrices

‘Matrices’ is the plural form of the word matrix, and it is basically a spreadsheet in the form of a box. In mathematics, various functions can be carried out with matrices. Generally, a matrix comes in the shape of a square or rectangle. The elements are distributed horizontally in the form of rows, and vertically in the form of columns.