Mathematics, 30.03.2021 01:00 landofliam30
The number of miles that regular tires last has a Normal distribution with a mean of 50,000 miles and a standard deviation of 8,200 miles. A competitor creates a new brand of tire, SuperWear Tires. The number of miles that SuperWear lasts has a Normal distribution with a mean of 75,000 miles and a standard deviation of 15,500 miles. If a random sample of 16 regular tires is selected and a random sample of 25 SuperWear tires is selected, the probability that the sample mean number of miles of SuperWear is greater than the sample mean number of miles obtained by the regular tires is approximately 1
Answers: 3
Mathematics, 21.06.2019 15:40
If the slope of one line equals the slope of another line then ? a) the two lines are intersecting lines b) the two lines are perpendicular lines c) the two lines are parallel lines d) the two lines always have very steep slopes
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Mathematics, 21.06.2019 18:50
Astudent draws two parabolas on graph paper. both parabolas cross the x-axis at (-4, 0) and (6,0). the y-intercept of thefirst parabola is (0, –12). the y-intercept of the second parabola is (0-24). what is the positive difference between the avalues for the two functions that describe the parabolas? write your answer as a decimal rounded to the nearest tenth.
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Mathematics, 21.06.2019 19:10
Which of the following is the shape of a cross section of the figure shown below
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Mathematics, 21.06.2019 22:30
Maria found the least common multiple of 6 and 15. her work is shown below. multiples of 6: 6, 12, 18, 24, 30, 36, 42, 48, 54, 60, . . multiples of 15: 15, 30, 45, 60, . . the least common multiple is 60. what is maria's error?
Answers: 1
The number of miles that regular tires last has a Normal distribution with a mean of 50,000 miles an...
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