Use the appropriate normal distribution to approximate the resulting binomial distribution.
A basketball player has a 75% chance of making a free throw. What is the probability of her making 80 or more free throws in 120 trials?
a. The probability is 0.9822.
b. The probability is 0.9864.
c. The probability is 0.9744.
d. The probability is 0.9898
b. The probability is 0.9864.
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Find a vector function that represents the curve of intersection of the two surfaces: the top half of the ellipsoid x²+7y²+7z²=49 and the parabolic cylinder y=x².
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Write the fraction.Of the 90 teachers at a school, 68 are women. What fraction of the teachers are NOT women?
A. 
B. 
C. 
D. 
Construct the specified histogram.The frequency table below shows the number of days off in a given year for 30 police detectives. 
Construct a histogram. 
What will be an ideal response?
Suppose that, for a certain exam, a teacher grades on a curve. It is known that the mean is 65 and the standard deviation is 6. There are 40 students in the class. How many students should receive a C?
?
?
__________ students
Fill in the blank(s) with the appropriate word(s).