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Use the commutative and associative properties of multiplication and exponential notation to rewrite the product.
y(y _ 5)(wy)
Use the distributive property to remove the parentheses.
-3(6 - p)
Simplify the following expression by combining like terms.
2a(a - 5) 4(a -5)
Simplify expression.
1/4(6b+2 )- 2/3 (3b-2)
Find the standard deviation for the given sample data. Round your answer to one more decimal place than is present in the original data.
A box contains four 40-W bulbs, five 6-W bulbs and six 70-W bulbs, if three bulbs are selected without replacement randomly. What is the probabilty that three are 70-W bulbs?
A college would like to have an entering class of 1200 students. Because not all students who are offered admission accept, the college admits more than 1200 students.
Show that it satisfies the required condition for being a probability distribution.
The January 17, 1994 issue of Time magazine reported that 58% of adult Americans said yes to the question "If you or your spouse were pregnant, would you want the unborn child tested for genetic defects?"
Explain which data techniques you are most familiar with/have used: in a previously done project that involved the collection and analysis of data and explain why the examination of collected data is so important.
Determine the following: the three different types of shows you want to compare; the mood you will measure and how you will measure it; what you think will happen-how you think each group will score on the mood measure you use.
Suppose the number of tickets written per day follows a Poisson dictribution with mean of 6.5 tickets per day. Interpret the value of the mean.
A random sample of 15 customers is selected, and the results are as follows: 8.02 4.08 5.79 8.73 5.47 5.64 8.01 10.49 8.35 5.9 9.66 9.91 3.82 6.68 6.17 a) calculate arithmetic mean, median, mode, first quartile and third quartile.
Create a 95% confidence interval for mean cost of repairs. Interpret this interval.
The length of a Colorado brook trout is normally distributed. What is the probability that a brook trout's length:
A law student, who want to check a professor's claim that convicted embezzlers spend on average 12.3 months in jail, takes a random sample of 36 such cases from court files.
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