Shipment time (hours) Frequencyf22.5 - 27.5 2327.5 - 32.5 40132.5 - 37.5 79437.5 - 42.5 70342.5 - 47.5 50347.5 - 52.5 41Use the frequency distribution to find the mean. Please round your answer to the nearest integer, if necessary.Use the frequency distribution to find the sample standard deviation. Please round your answer to the nearest integer, if necessary.Does the data form a normal distribution? Remember: if the data fall within 2% of the empirical rule of 68%, 95%, and 99.7% for one, two, or three standard deviations,
respectively, they form a normal distribution.
What will be an ideal response?
38; 5; no
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Solve the problem.The formula for the up-and-down motion of a weight on a spring is given byS = a sin 
twhere a is the radius of the circle, k is the spring constant, m is the mass, and t is the time. Solve the equation for t.
A. t = 
sin 
B. t = 
arcsin 
C. t = 
arcsin 
D. t = 
sin 
Factor by grouping.20x6 - 25x3 - 16x3 + 20
A. (5x3 + 4)(4x3 + 5) B. (20x3 + 4)(x3 + 5) C. (5x3 - 4)(4x3 - 5) D. (5x6 - 4)(4x - 5)
Name the property illustrated by the statement.6 ? 2 = 2 ? 6
A. Identity B. Distributive C. Commutative D. Associative
Solve the problem.The Fahrenheit temperature, F, in Siber City in October ranges from 
Write an absolute value inequality whose solution is this range.
A. 
< 14
B. 
< 74
C. 
< 60
D. 
> 46