is the hight of a basket ball player chosen at random a continuous variable?

The General Social Survey (GSS), conducted by the National Opinion Research Center at the University of Chicago, is a major source of data on social attitudes in the U.S. Once each year 1500 American adults aged 18+ are interviewed in their homes all across the U.S. The subjects are asked their...

Draw the histogram for these data using an initial class boundary of , an ending class boundary of , and classes of equal width. Note that you can add or remove classes from the figure. Label each class with its endpoints.

On an exam with a mean of = 70, you have a score of X = 75. Which of the following values for the standard deviation would give you the highest position within the class?

The most common intelligence quotient (IQ) scale is normally distributed with mean 100 and standard deviation 15. Many school districts across the country seek to identify "Gifted and Talented" children for special enrichment programs. Typically, these children must have IQ...

Your question: Considering that a researcher can test at the <p = .05 (95%), p = .01 (99%), or p = .001 (99.9%) level for statistical significance, how do you use these three levels in relationship to evaluate risk to patients in implementing the decisions based on research findings?

Eleanor scores 680 on the mathematics part of the SAT. The distribution of SAT math scores in 2007was Normal with mean 515 and standard deviation 114. Gerald takes the ACT Assessment mathematics test and scores 27. ACT math scores for 2007 were Normally distributed with mean 21.0 and standard...

Supppose the replacement times for washing machines are normally distributed with a mean of 9.3 years and a standard deviation of 1.1 years. Find the probability that 70 randomly selected washing machines will have a mean replacement time less than 9.1 years.

A sample of n = 5 scores produces SS = 20. What is the variance for this sample?

A multiple choice test has 10 questions each of which has five possible answers, only one of which is correct. If Judv, who forgot to study for the test, guesses on all the questions, what is the probability that she will answer exactly 3 questions correctly?