luckystar042003

14 Questions
2 Answers

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351

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please please help ASAP!!!!

. Suppose that scores on a knowledge test are normally distributed with a mean of 60 and a standard deviation of 3.4. Scores on an aptitude test are normally distributed with a mean of 110 and a standard deviation of 6.8. Boris scored a 55 on the knowledge read more ..

luckystar042003 Apr 25, 2021

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435

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HELP

Body mass index, or BMI, of 20-year-old men is normally distributed with a mean of 23 and a standard deviation of 3.8. Twenty-year-old Allan’s BMI has az-score of1.25. What is Allan’s BMI?

luckystar042003 Apr 25, 2021

-2

422

0

+16

PLEASE HELP ASAP

Suppose that the weights of 3200 registered female Great Danesin the United States are
distributed normally with a mean of 115 lb. anda standard deviation of 5.4 lb.
Approximately how many of the Great Danes weigh more than 125.8 lbs.? Round to the read more ..

luckystar042003 Apr 25, 2021

-2

475

2

+16

PLEASE HELP ASAP!!

2. Suppose that scores on a knowledge test are normally distributed with a mean of 60 and a standard deviation of 3.4. Scores on an aptitude test are normally distributed with a mean of 110 and a standard deviation of 6.8. Boris scored a 55 on the knowledge read more ..

luckystar042003 Apr 25, 2021

-1

827

1

+16

please help ASAP!!!

3. Last year, the numbers of skateboards produced per day at a certain factory were normally distributed with a mean of 20,300 skateboards and a standard deviation of 52 skateboards.

(a) On what percent of the days read more ..

luckystar042003 Apr 25, 2021

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494

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HELPPPPP

Madame Dumas has a rather extensive art collection and the over all value of her collection has been increasing each year. Three years ago her collection was worth $450,000. Two years ago her collection value increased to read more ..

luckystar042003 Apr 11, 2021

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484

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Mathhhhh

A grocery store finds that the number of boxes of a new cereal sold increases each week. in the 1st week, 26 boxes were sold. in the 2nd week, 58 boxes were sold. in the 3rd week 90 boxes were sold. the number of boxes of cereal read more ..

luckystar042003 Apr 11, 2021

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449

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math

The number of people that enter the contest the 1st day is 22. The 2nd day 27 people enter, and 32 people entered on the 3rd day. This pattern continues and the contest last 28 days.

What is the total number of people that entered read more ..

luckystar042003 Apr 11, 2021

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407

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math please help

Evan drops a ball vertically from a height of 100ft. The peak height after each bounce is half the previous height. How many feet does the ball travel from the time he drops the ball unitil it reaches the peak height after the 5th bounce? Show all read more ..

luckystar042003 Apr 11, 2021

+16

-2

please help!

luckystar042003May 9, 2021

+16

-1

THANKS A MILLION!!!

luckystar042003Apr 25, 2021