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Probability based on normal distribution.
Assume that X has a normal distribution, and find the indicated probability.
The mean is μ = 15.2 and the standard deviation is σ = 0.9.Find the probability that X is greater than 16.1.
A. 0.8413B. 0.1357C. 0.1550D. 0.1587
A sample of approx 25 students enrolled in the university points out that X (bar) = $315.4 and s = $43.20.
Find out the probability distribution, and the cumulative probability distribution of car arrivals.
Determine the value of correlation coefficient between these 2 variables?
Reading highway signs is not always easy, especially if your vision is imperfect. Vision in general tends to deteriorate with age. Two researchers conducted a study to determine if the distance at which a standard highway sign could be recognized ..
Suppose we wish to predict the crawling age of a particular baby when the average outdoor temperature is 25°F six months after birth.
(A) What sums are needed to calculate a correlation coefficient? (B) What are the two ways of testing a correlation coefficient for significance?
Utilizing the .05 level, do the results support the psychologists' theory. Elucidate your answer to somebody whom has never had a course in statistics.
Create a 95% confidence interval for true mean.
What is the proportion of people surveyed that rated the subway system from 3 to 4. What is the proportion of people surveyed rated the Subway System from 1 to 3.
Determine the probability of randomly selecting a person graduating with Master's degree who didn't major in Education.
A survey of the residents of a new subdivision on why they happened to select that area in which to live. You also wish to secure some information about what they like and do not like about life in the subdivision.
Conduct a marketing experiment in which students are to taste one of two different brands of soft drink
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