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kherson [118]
3 years ago
12

Individual gas mileages (in miles per gallon) of Model Extra SS (Extra Super-Sporty) sedans are normally distributed with a popu

lation mean of 20 and a population standard deviation of 2. Based on these information, if you bought a Model Extra SS sedan, what is the probability that the gas mileage (in miles per gallon) of your single, individual sedan is between 19.5 and 20.5
Mathematics
1 answer:
KATRIN_1 [288]3 years ago
6 0

Answer: 0.1974

Step-by-step explanation:

Let X be a random variable that denotes the gas mileage (in miles per gallon) of the individual sedan.

Given: Population mean: \mu=20

Standard deviation: \sigma=2

The probability that the gas mileage (in miles per gallon) of your single, individual sedan is between 19.5 and 20.5:

P(19.5

The required probability=0.1974

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3 years ago
Homework kills guys, please help
Kazeer [188]

Answer:

The correct answer is in bold below written in two different ways. I think that the two middle options of your problem were given by mistake. The correct answer is not in the options.

Step-by-step explanation:

cost of yogurt = cost of toppings + cost of yogurt with 1 topping

cost of yogurt with 1 topping = $3.65

cost of yogurt = cost of toppings + 3.65

cost of 1 additional topping = $0.45 * 1

cost of 2 additional toppings = $0.45 * 2

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Since 1 topping is included in the $3.65 charge, if you pay for x additional toppings, you will have x + 1 total number of toppings. That means you must pay for only x - 1 additional toppings to have a total of x toppings.

One topping is already included in the $3.65 charge, so you pay for only x - 1 additional toppings.

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y = 0.45(x - 1) + 3.65

y = 0.45x - 0.45 + 3.65

y = 0.45x + 3.2

8 0
3 years ago
The actual length of side t is 0.045 cm. Use the scale drawing to find the actual side length of w. A) 0.06 cm B) 0.075 cm C) 0.
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Answer: The answer is B 0.075 cm


Step-by-step explanation:

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5 0
3 years ago
Read 2 more answers
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scoray [572]

Answer:

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Step-by-step explanation:

Combine the like terms (-4/5 and -3/5)

5 0
3 years ago
How many miles will his family travel on the first day?
Igoryamba
On the first day, they traveled for 10 hours with an average speed of 60 mph.  Which means on the first day they traveled 600 miles.

Since the total distance is 1023 miles and presumably they will be going at a speed of 60 mph.  We divide the miles by the rate:

1023/60  = 17.05

So it will take 17.05 hours to drive the whole way to Florida.

3 0
3 years ago
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