The average number of miles driven on a full tank of gas in a certain model...
The average number of miles driven on a full tank of gas in a certain model car before its low-fuel light comes on is 377. Assume this mileage follows the normal distribution with a standard deviation of 25 miles. Complete parts a through d below.
a. What is the probability that, before the low-fuel light comes on, the car will travel less than 391 miles on the next tank of gas?
0.7123
(Round to four decimal places as needed.)
b. What is the probability that, before the low-fuel light comes on, the car will travel more than
344 miles on the next tank of gas?
0.9066
(Round to four decimal places as needed.)
c. What is the probability that, before the low-fuel light comes on, the car will travel between 333 and 353 miles on the next tank of gas?
0.1293
(Round to four decimal places as needed.)
d. What is the probability that, before the low-fuel light comes on, the car will travel exactly 390 miles on the next tank of gas?
(Round to four decimal places as needed.)
if possible explain how to do step by step on TI-84 Calculator
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The average number of miles driven on a full tank of gas in a
certain model...
Ques The average number of miles driven on a full tank of gas in a certain...
Ques The average number of miles driven on a full tank of gas in a certain model car before its low-fuel light comes on is 373. Assume this mileage normal distribution with a standard deviation of 36 miles. Complete parts a through d below. a. What is the probability that, before the low-fuel light comes on the car will travel less than 393 miles on the next tank of gas? (Round to four decimal places as needed.) b. What is...
The answers are in red. Please explain all, esp part d! The average number of miles...
The answers are in red. Please
explain all, esp part d!
The average number of miles driven on a full tank of gas in a certain model car before its low-fuel light comes on is 331. Assume this mileage follows the normal distribution with a standard deviation of 34 miles. Complete parts a through d below. a. What is the probability that, before the low-fuel light comes on, the car will travel less than 349 miles on the next tank...
The average number of miles driven on a full tank of gas in a certain model car before its ow-fuel light comes on is 338
The average number of miles driven on a full tank of gas in a certain model car before its ow-fuel light comes on is 338. Assume this mileage follows the normal distibution with a standard deviation of 27 miles. Complete parts a through d below. a. What is the probability that, before the low-fuel light comes on, the car will travel less than 364 miles on the next tank of gas? _______
WHAT IS THE SCORE IN THE LOWER QUARTILE (Q1)? *****Hints: you should recognize "lower quartile (Q1)"...
WHAT IS THE SCORE IN THE LOWER QUARTILE (Q1)?
*****Hints: you should
recognize "lower quartile (Q1)" as the Lower 25% (LEFT tail area)
under the normal curve, then find the z-score, and calculate the
"x" using the z-score formula.
Problem 2: Note: For EACH of the following part, draw a normal curve, mark the x-axis accordingly. and highlight the corresponding areas. Round z-scores to the SECOND decimal place, and keep the ORIGINAL FOUR decimal places for the probability. The average...
A certain model of automobile has its gas mileage (in miles per gallon, or mpg) normally...
A certain model of automobile has its gas mileage (in miles per gallon, or mpg) normally distributed, with a mean of 26 mpg and a standard deviation of 4 mpg. Find the probability that a car selected at random has the following gas mileages. (Round your answers to four decimal places.) (a) less than 20 mpg (b) greater than 28 mpg (c) between 24 and 28 mpg
The mean gas mileage for a hybrid car is 57 miles per gallon. Suppose that the...
The mean gas mileage for a hybrid car is 57 miles per gallon. Suppose that the gasoline mileage is approximately normally distributed with a standard deviation of 35 miles per on What proportion of lyrics pots ver miles per gallon? (b) What proportion of hybrids gets 53 miles per gallon or less (c) What proportion of hybrids gets between 57 and 61 miles per gallon? What is the probably that a randomly selected Hybrid gets less than 45 miles per...
A gasoline tank for a certain car is designed to hold 15.0 gal of gas. Suppose...
A gasoline tank for a certain car is designed to hold 15.0 gal of gas. Suppose that the variable x = actual capacity of a randomly selected tank has a distribution that is well approximated by a normal curve with mean 15 gal and standard deviation 0.2 gal. (Round all answers to four decimal places.) (a) What is the probability that a randomly selected tank will hold at most 14.7 gal? P(x ≤ 14.7) = (b) What is the probability...
Answer all questions please!!! The mean gas mileage for a hybrid car is 56 miles per gallon. Supp...
answer all questions please!!! The mean gas mileage for a hybrid car is 56 miles per gallon. Suppose that the gasoline mileage is approximately normally distributed with a standard deviation of 3.2 miles per gallon. (a) What proportion of hybrids gets over 62 miles per gallon? (b) What proportion of hybrids gets 52 miles per gallon or less? left parenthesis c right parenthesis What(c) What proportion of hybrids gets between 58 and 62 miles per gallon? (d) What is the...
Stan Moneymaker needs 15 gallons of gasoline to top off his automobile's gas tank. If he...
Stan Moneymaker needs 15 gallons of gasoline to top off his automobile's gas tank. If he drives an extra eight miles (round trip) to a gas station on the outskirts of town, Stan can save $0.10 per gallon on the price of gasoline. Suppose gasoline costs $3.00 per gallon and Stan's car gets 25 mpg for in-town driving. Each mile that Stan drives creates one pound of carbon dioxide. Each pound of CO2 has a cost impact of $0.02 on...
Stan Moneymaker needs 12 gallons of gasoline to top off his automobile's gas tank. If he...
Stan Moneymaker needs 12 gallons of gasoline to top off his automobile's gas tank. If he drives an extra eight miles (round trip) to a gas station on the outskirts of town, Stan can save $0.15 per gallon on the price of gasoline. Suppose gasoline costs $3.50 per gallon and Stan's car gets 25 mpg for in-town driving. Each mile that Stan drives creates one pound of carbon dioxide. Each pound of Co, has a cost impact of $0.03 on...
Ques The average number of miles driven on a full tank of gas in a certain model car before its low-fuel light comes on is 373. Assume this mileage normal distribution with a standard deviation of 36 miles. Complete parts a through d below. a. What is the probability that, before the low-fuel light comes on the car will travel less than 393 miles on the next tank of gas? (Round to four decimal places as needed.) b. What is...
The answers are in red. Please
explain all, esp part d!
The average number of miles driven on a full tank of gas in a certain model car before its low-fuel light comes on is 331. Assume this mileage follows the normal distribution with a standard deviation of 34 miles. Complete parts a through d below. a. What is the probability that, before the low-fuel light comes on, the car will travel less than 349 miles on the next tank...
WHAT IS THE SCORE IN THE LOWER QUARTILE (Q1)?
*****Hints: you should
recognize "lower quartile (Q1)" as the Lower 25% (LEFT tail area)
under the normal curve, then find the z-score, and calculate the
"x" using the z-score formula.
Problem 2: Note: For EACH of the following part, draw a normal curve, mark the x-axis accordingly. and highlight the corresponding areas. Round z-scores to the SECOND decimal place, and keep the ORIGINAL FOUR decimal places for the probability. The average...
The mean gas mileage for a hybrid car is 57 miles per gallon. Suppose that the gasoline mileage is approximately normally distributed with a standard deviation of 35 miles per on What proportion of lyrics pots ver miles per gallon? (b) What proportion of hybrids gets 53 miles per gallon or less (c) What proportion of hybrids gets between 57 and 61 miles per gallon? What is the probably that a randomly selected Hybrid gets less than 45 miles per...
Stan Moneymaker needs 12 gallons of gasoline to top off his automobile's gas tank. If he drives an extra eight miles (round trip) to a gas station on the outskirts of town, Stan can save $0.15 per gallon on the price of gasoline. Suppose gasoline costs $3.50 per gallon and Stan's car gets 25 mpg for in-town driving. Each mile that Stan drives creates one pound of carbon dioxide. Each pound of Co, has a cost impact of $0.03 on...
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