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1) If there are 150 values in a data set, how many classes should be created for a frequency histogram?
A. 5
B. 6
C. 7
D. 8
E. 9
2) . If x is a binomial random variable where n = 100 and p = 0.2, find the probability that x is less than or equal to 15 using the normal approximation t o the binomial.
obtain the general solution of a non-homogeneous ode y2y-5y-6y100e3x 18e-x. verify your solutions using matlab.yyhyp
If 36 women are selected at random, find the mean, and standard deviation, of the population of sample means. Suppose that the sampling is done without replacement and use a finite population correction factor.
What is the equation of the least-squares regression line for predicting corn yield from the number of lamb's quarter plants per meter?
Consider a sample of eight families who are asked if their children influence their vacation plans. Identify the values of n, p and q, and list the possible values of the random variable x.
you interview a random sample of 50 adults. the results of the survey show that 46 of the adults said they were more
A company that depends heavily on advertising for selling its products wants to know if its various advertising media have different effectiveness relative to the age of the customer.
GPA and IQ. Do you believe that the grade point average of a college student is correlated with the student's intelligence quotient (IQ)?
Public Health and Nutrition Individuals who belong to a health maintenance organization (HMO) usually share the cost of certain medical services.
That is, find the 80thpercentile, which is the X that represents the weight of the suitcase. Assume that the variable is normally distributed.
Suppose you deposit $100 in a savings account that compounds annually at 2%. After 1 year at this rate, the bank changes its rate of compounding to 1.5%.
What is the probability that the dample mean grade point average will be either less than 2.709 or more than 2.955.
If the flu virus randomly selects 7 workers from the 15 in the office, what is the probability that 4 are men and 3 are women?
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