Answer:
- The term observed frequencies are found in the sample.
Hence, option 'd' is correct.
Step-by-step explanation:
Unlike the expected frequency which is obtained based on prediction, the observed frequency is the actual frequency that is determined from the experiment.
Therefore, we conclude that
- The term observed frequencies are found in the sample.
Hence, option 'd' is correct.
The answer is: " 132° " .
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Note: m∠9 = m∠11 = m ∠16 ;
So; m∠11 + m∠16 = 132 .
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That means the decimal is repeatative
Two supplemental angles add up to 180°
So we have (A + B = 180°)
The measure of one of them is always 180° - the other.
A = 180° - B
B = 180° - A
The permimiter of a is 18 and the area is 9
