Data collected by the Oil Price Information Service from more than gasoline and convenience stores throughout the U. S. showed that the average price for a gallon of unleaded gasoline was (MSN Auto website). The following data show the price per gallon () for a sample of gasoline and convenience stores located in San Francisco. 3.59 3.57 3.59 3.59 4.79 3.55 3.56 3.99 3.55
4.15 3.71 3.66 3.65 3.63 3.60 3.73 3.75 3.61

Required:
a. Use the sample data to estimate the mean price for a gallon of unleaded gasoline in San Francisco.
b. Compute the sample standard deviation.
c. Compare the mean price per gallon for the sample data to the national average price. What conclusions can you draw about the cost living in San Francisco?

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18. g

20. h 30 degree turn.

21. d 90 degree angles

and also 19 is a. a sphere not a cirlcle

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pay attention in your classes and concentrate the best thing you can do to raise your test scores is to pay attention when you're supposed to be learning the material: in class!

take good notes.

do your homework.

use mnemonics and other tricks.

do practice tests.

note: the best i know.

1. x> -5

2. x< 8

step-by-step explanation:

1. 2x> -10

divide by 2 from both sides of equation.

2x/2> -10/2

simplify, to find the answer.

-10/2=-5

x> -5 is the correct answer.

2. 3x< 24

divide by 3 from both sides of equation.

3x/3< 24/3

simplify, to find the answer.

24/3=8

x< 8 is the correct answer.

i hope this you, and have a wonderful day!

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step-by-step explanation: