Questions asked
4.112 Education and income. Call a household prosperous if its income exceeds $100,000. Call the household educated if the householder completed college. Select an American household at random, and let A be the event that the selected household is prosperous and B the event that it is educated. According to the Current Population Survey, $P(A) = 0.138$, $P(B) = 0.261$, and the probability that a household is both prosperous and educated is $P(A \text{ and } B) = 0.082$. What is the probability $P(A \text{ or } B)$ that the household selected is either prosperous or educated?
What is the effect of the decreased inflationary expectations on the bond market
Why were the offspring trait ratios in Mendel's F2 generations approaching, as opposed to exactly, 3:1?
5. (10 points) The weighting pattern of a system is $T(t, \tau) = \begin{pmatrix} t\tau & \frac{t}{1} \end{pmatrix}$ (1) Is the weighting pattern realizable? (2) Find a realization of $T(t, \tau)$.
If someone completely stops using drugs and alcohol- the brain can make a full recovery true or false
In Silicon Valley, a number of computer firms were found to be contaminating underground water supplies with toxic chemicals stored in leaking underground containers. A water quality control agency ordered the companies to take immediate corrective action and contribute to a monetary pool for the testing and cleanup of the underground contamination. Suppose that the required monetary pool (in millions of dollars) is given by the following function, where x is the percentage (expressed as a decimal fraction) of the total contaminant removed. Complete parts (A) through (E). P(x) = 7x / (1 - x) 0 ≤ x < 1
7. Which basketball player is the Greatest Of All Time? Use z-scores to answer this question, using the statistics below. Standardized: Who Was the Best? Show all z-score calculations below: Wilt - 60's Jordan - 90's LeBron - 2010's 100 BULLS 22 Cavaliers 30.1 ppg 30.1 ppg 27.1 ppg Mean (µ) ppg in their era: 10.8 ppg 8.7 ppg 8.4 ppg Stdv (?) ppg in their era: 7.0 ppg 5.9 ppg 5.5 ppg Z-Score: (show work)
Order these values from the smallest 1 to 5 2.3 x 10^6, 4.5 x 10^-3, 1.1 x 10^8, 5.4 x 10^4 and 6.7 x 10^-7
TP TFC TVC TC AFC AVC AC MC 0 15,000 0 50 15,000 7,500 100 15,000 10,000 150 15,000 15,000 200 15,000 18,000 250 15,000 22,000
Problem 7.60 - MC A combination lock has a 1.4-cm-diameter knob that is part of the dial you turn to unlock the lock. To turn that knob, you twist your wrist as you grip it between your thumb and forefinger with a force of 4.0 N. Suppose the coefficient of static friction between the knob and your fingers is 0.60. Part A What is the most torque you can exert on the knob without having it slip between your fingers? Express your answer using four significant figures. $ \tau = 3.360 \times 10^{-2} \text{ N} \cdot \text{m} $ Part B If the maximum torque causes the knob to rotate at 15 RPM after 30 s of being constantly applied, what is the knob's moment of inertia? Assume the knob starts at rest. Express your answer using three significant figures and include the proper unit.
