Mean is nothing but the average of data. A given set of data is added and divided by total numbers. For example, mean of 2,4 and 8 will be (2+4+8)/3, which is 7. In excel, we use the AVERAGE function to calculate the mean of data. I always come across the usage of a double quotation mark but don't really know what does it mean. If the double quotes encloses a word, then the word will be display. A cell range in an Excel file is a collection of selected cells. This range is usually symmetrical (square), but can exist of separate cells just the same. A cell range can be referred to in a formula as well. The ‘SUM’ function is one of the first functions a new user learns. The standard deviation is just the square root of the variance. So, all you need to do is look for variance in the output and take the square root of it to find the standard deviation. For example, if you look in Excel’s output for the 2-sample t-test, you’ll see variances for each group and the pooled variance.
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A cell range in an Excel file is a collection of selected cells. This range is usually symmetrical (square), but can exist of separate cells just the same. A cell range can be referred to in a formula as well.
In a spreadsheet, a cell range is defined by the reference of the upper left cell (minimum value) of the range and the reference of the lower right cell (maximum value) of the range. Eventually separate cells can be added to this selection, then the range is called an irregular cell range. In Excel, the minimum and maximum value are included. That’s different from a mathematical range, in which it is a collection of values between a maximum and a minimum value.
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A symmetrical cell range can appear as below. The notation for this range is (A1:C6); from upper left cell A1 to bottom right cell C6.
Irregular cell ranges, like in the image below, also occur. The notation for this range is (A1:C6;E2;E6;C7;C9).
A cell range can be used inside a formula, for example to calculate the sum of the values within the selected cells. The notation for the sum of all values in cell range (A1:C6) is =SUM(A1:C6).
Larger spreadsheets are usually stuffed with formulas based on cell ranges. When spreadsheets are edited or expanded over time, different types of range issues may occur. These issues are usually hard to detect, but they can be very risky! We’ve seen big numbers and large sums of money ‘disappear’ because of range issues.
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PerfectXL detects different types of range issues, like references to empty cells, interrupted formula ranges, merged cells, references to merged cells, unexpected ranges and ranges in which unexpected shifts occur.