The expected numbers (under the null hypothesis) in each cell are equal to. Thus for the introvert/red cell the expected number is. To calculate the chi-squared (c2) statistic the value of. needs to be calculated for each cell in the table.
Ledger Board Definition. A ledger board is a horizontal lumber beam attached to an existing wall and used to tie in construction elements such as porch roofs and decks. A deck ledger is installed as part of the deck frame construction. The frame is then attached at either end, with the deck joists butting up to it.
In bookkeeping and accounting, a ledger is a book (or record) for collecting business transaction data from a journal, and organizing entries by account. The ledger provides information on the current balance in each account throughout the accounting period. At the end of the period, ledgers become the primary and authoritative source of data for building a firm's financial accounting reports, including the income statement and balance sheet.