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March 30, 2015

March 30, 2015

Posted by **Monique** on Tuesday, June 10, 2008 at 11:27am.

Caribbean follows the normal distribution. The mean number of passengers per cruise is

1,820 and the standard deviation is 120.

a. What percent of the cruises will have between 1,820 and 1,970 passengers?

b. What percent of the cruises will have 1,970 passengers or more?

c. What percent of the cruises will have 1,600 or fewer passengers?

d. How many passengers are on the cruises with the fewest 25 percent of passengers?

- Statistics -
**drwls**, Tuesday, June 10, 2008 at 12:36pmTry using the computional tool at this website:

http://psych.colorado.edu/~mcclella/java/normal/accurateNormal.html

Enter the mmean and the std. dev., and the limits of the integration interval, and then click "enter". Here are the answers I get:

(a) 39.4%

(b) 10.6%

(c) 3.3%

(d) 1739 passengers or less make up 25% of the sailings

- Statistics -
**Monique**, Thursday, June 12, 2008 at 12:52amThank you

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