Thursday

January 19, 2017
Total # Posts: 20

**Probability**

I figured this out: 1/5 = rain 4/5= no rain 1/5*1/5*4/5 = 4/125

*January 24, 2013*

**Probability**

Given the probability of rain on any given day in March is 1/5, find the probablity that: It rains on March 10 and 12, but not on March 11th. This is supposed to be used with multiplication Rule 1: P(A and B)= P(A)*P(B) cant figure it out, the answer is 4/125 and I have no ...

*January 24, 2013*

**math**

Twelve college students were surveyed about the distance from their house to the college they attended. 12 18 54 13 15 24 8 5 14 27 1 20 1. Using the data set above, find the percentile ranking for the data point 24. (is this 75th percentile? 2. Using the data set above, what ...

*January 20, 2013*

**statistics help please!**

Twelve college students were surveyed about the distance from their house to the college they attended. 12 18 54 13 15 24 8 5 14 27 1 20 1. Using the data set above, find the percentile ranking for the data point 24. (is this 75th percentile? 2. Using the data set above, what ...

*January 20, 2013*

**HELP PLEASE**

Please see January 19th post, that noone answered...

*January 20, 2013*

**HELP PLEASE**

Twelve college students were surveyed about the distance from their house to the college they attended. 12 18 54 13 15 24 8 5 14 27 1 20 1. Using the data set above, find the percentile ranking for the data point 24. (is this 75th percentile? 2. Using the data set above, what ...

*January 20, 2013*

**math**

well, the only way there can be 17 heads and 42 feet and 3 times more ducks, would be: 4 pigs (4 heads and 4 feet for each 4x4= 16 feet 13 ducks ( 13 heads and 2 feet each 13x2 =26 feet Heads = 4+13=17 for 4 pigs feet =16+26=42 for 13 ducks 4(Pigs) X 3 = 12 so there are 3 ...

*January 20, 2013*

**statistics**

400-60=340 340/400= 85th percentile?

*January 19, 2013*

**statistics**

In a local marathon, Bob finished 60th out of 400 participants. What is his percentile ranking for this race?

*January 19, 2013*

**statistics**

haha, beats me, but I would not want to work there!

*January 19, 2013*

**statistics**

A company is trying to show that their wages are fair. The mean salary is $45,000 but the median is $67,000. Which should they use for their position?

*January 19, 2013*

**statistics**

1. Is this correct? 10/12=.83 =83rd percentile. 2. Is this correct? .58*12=6.9=7;7/12=58th percentile, 7th number = 15 15 corresponds to 58th percentile 3. Q1=10; Q2=14.5; Q3=22

*January 19, 2013*

**statistics**

Twelve college students were surveyed about the distance from their house to the college they attended. 12 18 54 13 15 24 8 5 14 27 1 20 1. Using the data set above, find the percentile ranking for the data point 24. 2. Using the data set above, what distance corresponds to ...

*January 19, 2013*

**statistics**

Gotcha, that is what I put!! Can you help me with the other post? Its the only post that I am not confident about and it has not been answered. thank you!

*January 19, 2013*

**statistics**

In a competitive application process, two applicants were closely matched and the judges needed to compare their percentile ranking to see who should be offered the last position.Jeremiah ranked 405th in a class of 1,200 and Joshua ranked 12th in a class of 89. Based solely on...

*January 19, 2013*

**statisitics**

yes, I got that answer, I figured out each using an area table 500-400=100 100/100=1 500-600=-100 -100/100=-1 on area table 1.00 = .341 .341+.341= .682 rounded =.68 .68*5000=3400

*January 19, 2013*

**statisitics**

choices: 1. 5000 2. 4750 3. 2500 4. 3400

*January 19, 2013*

**statisitics**

That is not one of the answers =(

*January 19, 2013*

**statisitics**

A company installs 5000 light bulbs, each with an average life of 500 hours, standard deviation of 100 hours, and distribution approximated by a normal curve. How many bulbs should have a life expectancy between 400 and 600 hours?

*January 19, 2013*

**math**

P(A and B) = P(A) * P(B) 2/3 = rain 1/3 = no rain 2/3 * 1/3 = 2/9

*May 17, 2007*

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