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Indicate which would be the independent variable and which would be the dependent variable in each of the following:
a. Score on the first test, Final grade
b. Gas mileage, Car speed
c. High school grade point average, Freshman College grade point average
d. Crop yield, Rainfall
Develop an appropriate forecast model for the given problem whereas the student population has remained constant during this period.
What is the relationship between the variance and the standard deviation?
Find out the mean number of letters that will arrive in two days.
Select the variable team salary and find the mean, median, and the standard deviation
To test the given claim using Single Proportion Z test.
A study of cardiovascular risk factors compared heavy smokers, light smokers, and nonsmokers. Both men and women were included in the study so that the two factors are smoking level and gender.
Given are the numbers of times the machine was used over each of the last 30 days. Find out the mean number of times the machine was used per day.
Ten students were sampled at random from a student population. Each was asked how many courses he or she was planning on studying in the upcoming year. The following is a list of the reported data values: 1, 2, 2, 3, 4, 5, 5, 5, 5, 6 What is the vari..
Then use ogive to estimate median and first and third quartiles. Also utilize it to reply following question: What percent of 60 mutual fund loads are less than 75.
2 laptops are chosen at random without replacement, what is the probability that both are high priced?
Similar survey of student population 10 years ago found that coffee shop was favoured by 20% of students, and pizza and hamburger were each preferred by 40% of the students. Determine the expected frequencies for chi-square test.
Determine whether or not the mean waiting time of all customers is significantly more than 3 minutes.
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