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A Seed Company Has a Test Plot in Which It

question 58

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A seed company has a test plot in which it is testing the germination of a hybrid seed. They plant 50 rows of 40seeds per row. After a two-week period, the researchers count how many seed per row have sprouted. Theynoted that least number of seeds to germinate was 33 and some rows had all 40 germinate. The germinationdata is given below in the table. The random variable x represents the number of seed in a row thatgerminated and P(x) represents the probability of selecting a row with that number of seed germinating.Determine the standard deviation of the number of seeds per row that germinated. x3334353637383940P(x) 0.020.060.100.200.240.260.100.02\begin{array} { | c | c | c | c | c | c | c | c | c | } \hline x & 33 & 34 & 35 & 36 & 37 & 38 & 39 & 40 \\\hline P ( x ) & 0.02 & 0.06 & 0.10 & 0.20 & 0.24 & 0.26 & 0.10 & 0.02 \\\hline\end{array}


Definitions:

Drawing Account

An account used to record amounts withdrawn by the owner of a business for personal use.

Closing Entry

Journal entries made at the end of an accounting period to transfer balances from temporary accounts to permanent ones, preparing for the next period.

Pre-closing Trial Balance

A financial report listing all the account balances in the general ledger before adjusting entries are made for the preparation of financial statements.

Closing Entries

The accounting process of transferring temporary account balances to permanent accounts at the end of an accounting period.

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