Thirty automobiles were tested for their fuel efficiency in miles traveled per gallon of fuel using two different fuels. The following frequency distribution are obtained for each fuel type: Fuel A Fuel B Class Frequency Class Frequency (mi/gal) 8 - 12 3 5 - 11 4 13 - 17 5 12 - 18 3 18 - 22 15 19 - 25 13 23 - 27 5 26 - 32 7 28 - 32 2 33 - 40 3 a.) Determine the standard deviations for the fuel efficiency of each fuel type. b.) Which type of fuel has greater variation in its fuel efficiency?

Q: The sum of half a number and three equals eleven.

A: The sum of half a number and three equals eleven.

Q: the sum of a number and -4 is greater than 15 find the number

A:

Q: Solve using the elimination metho 2x-4y = 32, 3. 4. 4x+5y= 25

A: Authoring guidelines:…

Q: Eight less than six times a number is equal to four times the number plus two. Determine the number

A:

Q: Two thirds of the sum of 36 and this unknown number is 28. Identify the unknown number.

A: Let the unknown number be x."Two-thirds of the sum of 36 and the unknown number is 28 . "

Q: Cecilia is 5 years older than Amit. If the sum of their ages 10 years from now will be 95, how old…

A:

Q: Six times the sum of a number and eight is 30. Find the number.

A: Given: 6 times the sum of number and eight is 30 Let the number be x.

Q: A 6 inch personal pizza has 630 calories, with 240 of those from fat. A 14 inch pizza is cut into 8…

A: To estimate the number of calories in one slice of a 14-inch pizza, we can follow these steps:1.…

Q: Four times a certain number plus one-third is equalled to three times the number plus twenty. Find…

A: Given four times a certain number plus one-third is equal to three times the number plus twenty.

Q: You have a 20% total purchase coupon. You total is $134.22, if you use the coupon what does your…

A:

Q: Merely spends a total of $68.82 for pairs of sneakers with the same cost.the sales tax is…

A: Given query is to find the cost of the sneakers.

Q: A number is 5 more than three times the other number. Twelve less than four time the smaller number…

A: Let x be the smaller number and y be the greater number. According to the problem, we have the…

Q: Willie Mays and Mickey Mantle hit 88 home runs one season to lead their leagues. Mays hit 14 more…

A:

Q: Four less then the product of 8 and a number is -28. Find the number. . A number increased by 7 is…

A: We can answer both the question as below

Q: The sum of the two-digit number is 9. The tens digit is three less than three times the units digit.…

A: Lets the ten's digit be x ,and let unit's digit be y Then the number formed is 10x+y As the sum of…

Q: The sum of the two-digit number is 8. The unit digit is four less than five times the tens digit.…

A: Let  'ab' denotes a two digit number where 'b' is unit digit and 'a' denotes tens digit. Given that…

Q: SOLVE the following equation. Show all your work, as demonstrated in class. You may upload a file,…

A:

Q: the sum of twice a number and nine is 17 . find the number

A: Solution-  Given  Sum of twice a number and 9 is 17  Then number = ? Let the no. Is X now we can…

Q: Nicole, Chau, and Jim have a total of $69 in their wallets. Nicole has $5 less than Chau. Jim has 2…

A: