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Question: 1. For many school systems, an IQ of 70 indicates that the child may be eligible for special education. What proportion of the general population has an IQ of 70 or less?
2. In a school district of 4000 students, how many would be expected to have IQs of 70 or less?
A company that has 200 employees chooses a committee of 15 to represent . When the committee is formed, none of the 56 minority employees are selected. if the committee is chosen randomly. What is the probability that it contains no minorities.
Write an essay on descriptive statistics. Start by jotting down from memory things you could include. Review Chapters 2-6, adding to your list additional facts or other considerations. Draft the essay. Rest. Revise it
1) What is the variable expense ratio? 2) What is break-even point in unit sales? 3) What is the contribution margin ratio? 4) What is the break-even point in dollars?
Analyze the table data to conclude whether the distribution of cars that earned the Top Safety Picks safety award has remained the same between 2009 and 2013.
A recent national survey found that high school students watched an average (mean) of 6.8 videos per month. A random sample of 36 college students revealed that the mean number of videos watched last month was 6.2
the horn on an auto operates on demand 99 of the time. assume that each time you hit the horn it works or fails
The second segment goes from (1,1) to the point (x, 1). Sketch the distribution function, and determine what x has to be in order to be a legitimate density curve.
john has six bills of paper money in the following denominations 1 5 10 20 50 and 100 if he selects 3 bills at a time
Calculate the mean absolute deviation (MAD) for the fit of the forecast values to the actual values, then use the equation to forecast the CPI for 2005.
A control system for controlling the pressure in a closed chamber is shown in Figure P8.4. The transfer function for the measuring element is
Conduct necessary analyses using SPSS so you can answer the questions for the problem, "Three Group MANOVA," at the end of Chapter 10B.
concepts and applicationsfind the range and standard deviationold faithful geyser time intervals in minutes between
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