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Question: TEACHER ATTITUDES A nonprofit organization conducted a survey of 2140 metropolitan-area teachers regarding their beliefs about educational problems. The following data were obtained: 900 said that lack of parental support is a problem. 890 said that abused or neglected children are problems. 680 said that malnutrition or students in poor health is a problem. 120 said that lack of parental support and abused or neglected children are problems. 110 said that lack of parental support and malnutrition or poor health are problems. 140 said that abused or neglected children and malnutrition or poor health are problems. 40 said that lack of parental support , abuse or neglect, and malnutrition or poor health are problems. What is the probability that a teacher selected at random from this group said that lack of parental support is the only problem hampering a student's schooling? Hint: Draw a Venn diagram.
what is the mass of lerenas backpack in kilograms?
Finding Probabilities Under Normal Distribution. Suppose x is a normally distributed random variable with y=13 and o=2. Find the following probabilities
1. using the telephone numbers listed in your local directory as your population randomly obtain 20 samples of size 3.
find parametric equations for the tangent line to the curve with the given parametric equations, x=2cost, y=2sint, z=4cos2t, at the specified point (sqrt(3),1,2)
(a) Use enumeration to describe the sets (1/2)Z, (1/3)Z, (1/2)Z intersects (1/3)Z, (1/2)Z union (1/3)Z, (1/2)Z (1/3)Z, and (3Z)^C (where the compliment is taken inside Z).
If a ball is thrown upward with an initial velocity of 98 ft/s. How high will it go? When will it return to the ground?
your stamp collection consists of 145 stamps. each stamp has either a cancellation mark or no cancellation mark. there
white chocolate truffles, solid chocolate pieces (in both milk and dark chocolate), and yogurt- and chocolate-coated pretzels. How many ways are there to fill the box?
Suppose that 450 ft of fencing is used to enclose a corral in the shape of a rectangle with a semicircle whose diameter is a side of the rectangle. (In the figure below, the blue outline represents the fencing.) Find the dimensions of the corral w..
Determine the error in your above estimate, and use that value to estimate the error you'd expect for
Predict the average daily volume of e-mail messages in 2007 and in 2010. Determine those years in which the average daily volume of e-mail messages will be greater than 110.9 billion.
Sketch the graph of the inventory as a function of time t (days). At what times is the graph discontinuous?
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