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Brokerage Accounts (1000) Assets ($ billions)
Ameritrade 428 19.5
Charles Schwab 2500 219.0
Datek 205 5.5
Discover 134 5.9
DLJ Direct 590 11.2
E* Trade 909 21.1
Fidelity 2300 160.0
National Discount Brokers 125 6.8
Suretrade 130 1.3
TD Waterhouse 615 38.8
(a) Does the wording of the initial question in this exercise indicate which variable should be treated as the response?
(b) Construct a scatterplot with Assets on the vertical axis and Accounts on the horizontal axis.
(c) Comment on the form, direction, and strength of the relationship between Assets and Accounts.
(d) Two brokerages stand out from the rest of the data. Identify these two brokerages by putting their names near their respective data points in your scatterplot.
Probability Average sale of product is 87,000 on a normal curve with a standard deviation of 4,000. What is the probability that sales will be less
55% of a restaurant's orders are from customers eating in the restaurant and 45% from the drive through window. 65% of the orders from the customers eating in the restaurant are from food and 35% from drinks. Solve Probability Problem Quantitative ..
find the position of the spring when it has, (i)zero velocity(ii)max velocity(iii)minimum velocity
during one revolution of the ferris wheel for how many minutes is the passenger at least 100 feet above the ground?
Tony rented a truck for one day. There was a base fee of 20.99 , and there was an additional charge of 99 cents for each mile driven. Tony had to pay 180.38 when he returned the truck. For how many miles did he drive the truck?
on a recent day a store manager noted that 65 custumers bought at least eight items. This was one fifth of the total number of customers that day. Write and solve an equation to find the total mumber of customers.
A box with a square base has length plus girth of 108 in. (Girth is the distance "around" the box.) What are the two possible lengths of the box, if its volume is 2000 in?
Round your answer to 4 decimal places. Remember to round your z-value to 2 decimal places.
Let S be the part of the plane 3x + 1y + z = 4 which lies in the first octant, oriented upward. Find the flux of the vector field F = 1I + 2J + 2K across the surface S.
Three forces with magnitudes of 70 pounds, 40 pounds, and 60 pounds act on an object at angles of -30 degrees, 45 degrees, and 135 degrees, respectively, with the positive x-axis. Find the direction and magnitude of the resultant of these forces.
In each of the following parts, you should simplify your answers where it is appropriate to do so. Write down the derivative of each of the functions
Rate of change over the time intervals .
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