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MATH 1280-01 Introduction to Statistics - AY2025-T5
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The probability of getting a number greater than 4 when a dice is thrown once is 1/3.
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The contingency table below shows survey results of students’ preferred subjects:
| Likes Math | Likes Science | Total |
Male | 20 | 15 | 35 |
Female | 25 | 20 | 45 |
Total | 45 | 35 | 80 |
What is the probability that a randomly selected student is a female who likes Math?
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Which rule helps approximate the distribution of data in a normal distribution?
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The trials in a geometric distribution are dependent.
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What is the mean of a standard normal distribution?
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If the probability of success on each trial is p=0.6, what is the expected number of trials needed to get the first success?
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Systolic blood pressure for women between the ages of 18 to 24 follow a normal distribution with a standard deviation of 13.1. If one woman from this population is randomly selected, find the probability that her systolic blood pressure is greater than 120.
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When measuring the height of individuals in a population for a health study, what type of variable allows for an infinite number of values within a given range?
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A researcher uses a frequency table to count how often different shoe sizes are purchased in a store. Shoe size is a:
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A test score of 85 corresponds to the 75th percentile in a normal distribution. What does this mean?
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