Statistics

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must be able to complete in an hour. Send me each problem solved as you go. Must be able to show work for each problem. 1) is B dependent or independent of event A? A: A green ball is drawn from a box with five balls snd placed next to the box. B: A red ball is drawn next and placednext to the green one. 2) use the given paired data to construct a scatter plot : x -6 7 7 10 8 6 4 -3 2 y 2 7 11 11 11 7 5 3 3 3) at one college GPA’s are normally distributed with a mean of 2.9 and a standard deviation of 0.6. What percentage of students at the college have a GPA between 2.3 and 3.5 ? 4) the mean height of a basketball team is 6.3 feet with a standard deviation of 0.2 feet. The teams center is 6.9 feet tall. Find the center’s z score. 5) find P(A) given that P(A) =0.732 6) last year , nine employees of an electronics company retired. Their ages at retirement are listed below. Find the mean retirement age. 51 60 67 53 60 58. 65 56 54 7) the midterm test scores for the seventh- period typing class are listed below. 85 77 93 74 65 68 97 88 59 74 83 85 72 63 79 8) find the mode(s) for the given sample data 7.11 7.41 7.56 7.11 7.88 7.99 7.62

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