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Find the necessary probability for normal distribution.
1. The scores on the verbal portion of the SAT have a normal distribution with a mean of 500 and standard deviation of 100.
-What is the proportion of people that score at least 700?
-If a student who took the SAT is randomly chosen what is the probability that the student scores at most 350 on the verbal portion?
-George scored higher than about 62 percent of the people on the verbal portion of the SAT. What is George score?
2. The average number of hours of sleep per night that a college freshman gets is 6.50 with a standard deviation of 1.80 hours. If 35 college freshmen are randomly chosen find the probability that they average at least seven hours of sleep per night.
We are asked to test for independence between age (i.e., adult and teen) and drink preferences.
He would like to determine whether there are more units produced on the afternoon shift than on the day shift.
Suppose each employee in the company receives a $3000 raise for next year (each employee's salary is increased by $3000). The interquartile range of the salaries will
Describe the data appear the strength of the relationship among variables is sufficient to warrant using linear regression forecasting.
Establish an approximate design to MTBF required for a system that will result in an approximate minimum total cost over a five year period if the system is to be operated 7500 hours per year
Use a scatter plot to determine the relationship between the x values and the y values.
MATH1550H: Assignment:Questions: (Genetics) What is the probability that at most two of the offspring are aa?
Solve linear program graphically
The daily numbers of calls received by the Internal Revenue Service office in July are shown below:
Determine the probability of choosing at random license plate which ends in the even number?
A scientist examined the effect of temperature and catalyst on the yield of a reaction. He ran the experiment at both 150° and 200°C with two types of catalyst.
What is the expected value and variance for the number of contacts in eight attempts?
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