Saturday

January 31, 2015

January 31, 2015

Posted by **Fiza** on Wednesday, July 23, 2008 at 8:17pm.

A

The amount of pyridoxine (in grams) in a multiple vitamin is normally distributed with = 110 grams and = 25 grams. What is the probability that a randomly selected vitamin will contain less than 100 grams of pyridoxine? ì ó

B

The amount of pyridoxine (in grams) in a multiple vitamin is normally distributed with = 110 grams and = 25 grams. Approximately 83% of the vitamins will have at least how many grams of pyridoxine? ì ó

- Statistics -
**drwls**, Thursday, July 24, 2008 at 8:10amI believe you copied these questions incorrectly. The first one only makes sense if you meant:

The amount of pyridoxine (in grams) in a multiple vitamin is normally distributed with (mean) = 110 grams and (standard deviation) = 25 grams. What is the probability that a randomly selected vitamin will contain less than 100 grams of pyridoxine?

You also left out the words "mean" and "standard deviation" in the second question.

Both questions can be answered with normal distribution tables or computational tools.

- Statistics -
**drwls**, Thursday, July 24, 2008 at 8:17amFor a time-saving computational tool for problems like this, see

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

I get 34.5% for your first question and 86 grams for the second. The second has to be solved by iteration (seeing what works)

- Statistics -
**Fiza**, Thursday, July 24, 2008 at 1:14pmThanks a lot

- Statistics -

**Answer this Question**

**Related Questions**

stat - 1. The amount of pyridoxine (in grams) per multiple vitamin is normally ...

Statistics - A particular fruit's weights are normally distributed, with a mean ...

Math - The weights of adult long-tongued fruit bats are known to be normally ...

math - The weights of adult long-tongued fruit bats are known to be normally ...

statistics - The weight of a can made from a machine is normally distributed ...

statistics - the birth of healthy, full term infants in the United States is ...

statistics - An automatic machine that fills bags of unpopped popcorn is ...

statistics - An automatic machine that fills bags of unpopped popcorn is ...

science - what will be the law of conversion of a) 65 grams 70 grams b) ...

math - The weight of a can made from a machine is normally distributed with a ...