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AP Statistics/Unit 5: Sampling Distributions
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Probability For A Sample Proportion

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It is estimated that 80% of people with high math anxiety exhibit brain activity similar to physical pain when anticipating math problems. In a random sample of 110 individuals, what is the probability that less than 75% show this response?

A

Approximately 0.4052, which mistakenly represents the complement

B

Around 0.0290, arising from an underestimation of the standard error

C

Close to 0.1410, due to a misinterpretation of the z-score scale

D

Approximately 0.0948

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