Redbox is one way to rent movies in the US. Individuals can go to a Redbox kiosk and have a wide variety of movies to choose from. A study was done in which researchers observed the duration of time (in seconds) individuals spent making a decision on which movie to rent at a Redbox.

Answer the next three parts based on the following box-plot.

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Part 1: What is the longest observed time of the Redbox customers in this study? (Give an estimated number in seconds.)

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Part 2: Based on the box-plot, what is the value of the mean decision time?

Group of answer choices

This cannot be determined

105 seconds

62 seconds

187 seconds

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Part 3: What is the 3rd Quartile of the Redbox decision times? (Give an estimated number.)

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Your teacher Brother Smith has two Math 221 sections, section 1 and section 2. After giving both sections the same exam, he calculated the mean and standard deviation of the exam grades of each of his sections and got the following results:

Section 1: Mean = 72, Standard Deviation = 7

Section 2: Mean = 64, Standard Deviation = 13

Use this information for all three parts.

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Part 1: Which of the following statements is true about the results above?

Group of answer choices

Section 2 exam grades had less spread than section 1's exam grades.

Section 2 exam grades had more spread than section 1's exam grades.

Section 2 exam grades tend to be higher than section 1 on the exam.

None of the above statements are true.

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Part 2: Adam is a student in Brother Smith's Section 1. Adam's score was at the 30th percentile. What does that mean?

Group of answer choices

30 students in section 1 scored lower than Adam.

30 students in section 1 scored higherthan Adam.

30% of the students scored the same or higher than Adam.

30% of the students scored the same or lower than Adam.

Adam scored 30% on the exam.

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Part 3: Suppose Adam's score was 60. If we pick a student at random from Brother Smith's section 1 class, what is the probability that they scored 60 or below? (Enter your answer as a decimal.)