A data set is made up of these values. 1, 4, 4, 5, 6, 8,9
Find the interquartile range.
A. 9 -1 = 8
B. 9-8 = 1
C. 4-1 = 3
O 0
D. 8 -4 = 4
SUBMIT

The lengths of nails produced in a factory are normally distributed with a mean of 4.91 centimeters and a standard deviation of 0.05 centimeters. find the two lengths that separate the top 4% and the bottom 4%. these lengths could serve as limits used to identify which nails should be rejected. round your answer to the nearest hundredth, if necessary.

45% of the trees in a park are apple trees. there are 27 apple trees in the park. how many trees are in the park in all?

Rewrite the following quadratic functions in intercept or factored form. show your work. y = x^2 + 7x + 10