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Answer the given question below
1.Data from the Motor Vehicle Department indicate that 80% of all licensed drivers are older than age 25. a. In a sample of n=60 people who recently received speeding tickets, 38 were older than 25 years and the other 22 were age 25 or younger. Is the age distribution for this sample significantly different from the distribution for the population of licensed drivers? Use a = .05.
2.Same as above, the total number of participants is 60. Obtain the expected frequencies using 80% and 20%. b. In a sample of n=60 people who recently received parking tickets, 43 were older than 25 years and the other 17 were age 25 or younger. Is the age distribution for this sample significantly different from the distribution for the population of licensed drivers? Use a = .05.Same as above only the observed frequencies changed
If investors invests $10,000 for one month in a company whose stock either goes up by 80% after a month with probability 1/2 or drops 60% with probability 1/2.
Rotate the coordinate axes to change the equation 3x2 + 2√3xy + y2 - 8x + 8√3y = 0 into an equation that has no cross product (xy) term. Then identify the equation.
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The second sample shows the SAT verbal test scores for students whose parents are high school graduates but do not have a college degree.
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Let P(t) be the population of a colony of fruit flies, where the time t is measured in days. The initial size of the population doubles in 4 days. Assume exponential growth. What is the size of the population after 12 days.
Find the distance of the point (1,2,3) from the line x=y=z. Find the distance between the lines x-1=2y=z and x=-t+3y, y=3t, z=5.
What's the relationship between the rank of a matrix and singular values in singular value decomposition?
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