hiya12345

9 Questions
1 Answers

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help please!

From generation to generation, the mean age when smokers first start to smoke varies. However, the standard deviation of that age remains constant of around 2.1 years. A survey of 40 smokers of this generation was done to see if the mean starting age is read more ..

hiya12345 Apr 14, 2019

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726

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Can you delete questions you posted?

off-topic

hiya12345 Apr 11, 2019

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771

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PLEASE HELP! THANK YOU

According
to the U.S. Energy Information Association (eia.gov), the mean electricity consumption per year For a household in the U.S. is 10400 kWh (kWh = kilowatt-hours = kilowatt * hours, it is how you get billed for electricity) with a standard read more ..

hiya12345 Apr 11, 2019

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711

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help please

For a continuous probablity distribution, 0 ≤ x ≤ 15. What is P(x > 15)?

hiya12345 Mar 4, 2019

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1057

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What does the shaded area represent?

P(___< x < ___)

hiya12345 Mar 4, 2019

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794

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help

On average, Pierre, an amateur chef, drops three pieces of egg shell into every two cake batters he makes. Suppose that you buy one of his cakes.
1) In words, define the random variable X.
2) List the values that X may take read more ..

hiya12345 Mar 4, 2019

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784

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PLEASE HELP THANKYOU

According to the South Carolina Department of Mental Health web site, for every 200 U.S. women, the average number who suffer from anorexia is one. Out of a randomly chosen group of 600 U.S. women determine the following. 1. In words, define the random read more ..

hiya12345 Mar 4, 2019

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+3

5pound 16 ounces

----------- * -------------- = 80 ounces

1ounce 1pound

hiya12345Mar 4, 2019