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A sum of 10% of oranges from three boxes of oranges is found to be rotten.  is a non-rotten orange event. If an orange box contains 30 oranges, calculate the probability of taking one non-rotten orange at random.

Pertanyaan

A sum of 10% of oranges from three boxes of oranges is found to be rotten. begin mathsize 14px style C end style is a non-rotten orange event. If an orange box contains 30 oranges, calculate the probability of taking one non-rotten orange at random.

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Pembahasan Soal:

begin mathsize 14px style C end style is a non-rotten orange event, so begin mathsize 14px style C to the power of c end style is a rotten orange event.
 

begin mathsize 14px style n left parenthesis S right parenthesis equals 30 n left parenthesis C to the power of c right parenthesis equals 10 percent sign cross times 30 equals 3 n left parenthesis C right parenthesis equals 30 minus 3 equals 27 end style
 

begin mathsize 14px style P left parenthesis C right parenthesis equals 27 over 30 equals 9 over 10 end style
 

The probabily of taking one non-rotten orange at random is begin mathsize 14px style 9 over 10 end style.

Pembahasan terverifikasi oleh Roboguru

Terakhir diupdate 06 Februari 2021

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