please helpSolutionTotalling the frequency from below 50 to

Solution

Totalling the frequency from below 50 to 89, there are

=42+45+132+54 = 273 items.

Thus, as there is a total of 300, then there are 300-273 = 27 items on 90-100. [ANSWER, 27, frequency of 90-100]

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Thus, dividing the frequencies by 300 each,

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The sample is always a subset of the population. Hence, it is [OPTION B, ANSWER].