Wednesday

October 1, 2014

October 1, 2014

Total # Posts: 3,268

**Math**

yes i have seen the examples of the formula but was still very confused...thanks you two :)
*July 29, 2011*

**Math**

If P(A or B) = 0.5, P(A) = 0.2 and P(B) = 0.7, determine P(A and B).
*July 29, 2011*

**Math**

still confusing to me why you would divide by P(B)....
*July 29, 2011*

**Math**

Given that P(A) = 0.5, P(B) = 0.6, and P(A and B) = 0.30, determine P(A|B) ??
*July 29, 2011*

**Math**

i know i just dont know how to input it correctly on my computer :(
*July 29, 2011*

**Math**

Evaluate: 7^C4 i think its something like: (7*6*5*4*3*2*1) / ((2*1)(4*3*2*1)) = (7*6*5*4)/(4*3*2*1) = (7*6*5)/(2*1) = 105...did i do i right??
*July 29, 2011*

**Math-probability**

oh whoa i was way off! thanks Reiny :)
*July 29, 2011*

**Math-probability**

A bag contains a total of 30 batteries, of which six are defective. Selecting four at random, without replacement, determine the probability that none of the batteries you select are good. I think it's 2/15, but im not sure if thats correct....
*July 29, 2011*

**Math**

hmmmmm.....
*July 29, 2011*

**Math**

A mini license plate for a toy car must consist of two numbers followed by a letter. Each number must be a 5, 7 or 9. Each letter must be a C, A or N. Repetition of digits is NOT permitted. Use the counting principle to determine the number of points in the sample space. ...
*July 29, 2011*

**Math**

oh okay i get it...
*July 29, 2011*

**Math**

In how many different ways can the top eight new indie bands be ranked on a top eight list? The top hit song for each of the eight bands will compete to receive monetary awards of $1000, $500 and $250, respectively. In how many ways can the awards be given out? I think the ...
*July 29, 2011*

**MATH**

In how many different ways can the top eight new indie bands be ranked on a top eight list? The top hit song for each of the eight bands will compete to receive monetary awards of $1000, $500 and $250, respectively. In how many ways can the awards be given out?
*July 28, 2011*

**Math**

yay!!!haha...thanks!!!
*July 28, 2011*

**Math**

oh wait is it 10*7 = 70 different sections??
*July 28, 2011*

**Math**

oh i did 10/7, but is it 7/10 which is 0.7??
*July 28, 2011*

**Math**

In how many ways can 10 instructors be assigned to seven sections of a course in mathematics? would it be 10/7 = 1.43??
*July 28, 2011*

**Math**

ok....will do
*July 28, 2011*

**Math**

im confused!! :(
*July 28, 2011*

**Math**

2. 4/12? 3. 8/12??
*July 28, 2011*

**Math**

i believe the first one is 4/52? the second one is 2/12? and the last one is 4/12?
*July 28, 2011*

**Math**

A card is selected from a standard deck of 52 playing cards. A standard deck of cards has 12 face cards and four Aces (Aces are not face cards). Find the probability of selecting ·an eight given the card is a not a face card. ·a club given the card is red. &...
*July 28, 2011*

**Math-Can you help me Damon or Reiny?**

Consider the Venn diagram below. The numbers in the regions of the circle indicate the number of items that belong to that region. (2 intersecting circles A & B, where A part is 50, B part is 110, and the intersecting part is 40) Determine: n(A) n(B) P(A) P(B) P(A|B) P(B|A)
*July 28, 2011*

**Math**

yes thats what it means, but im stuck on this problem....
*July 28, 2011*

**Math**

im not sure what P is....
*July 28, 2011*

**Math**

Consider the Venn diagram below. The numbers in the regions of the circle indicate the number of items that belong to that region. (2 intersecting circles A & B, where A part is 50, B part is 110, and the intersecting part is 40) Determine: n(A) n(B) P(A) P(B) P(A|B) P(B|A)
*July 28, 2011*

**Math-Please help**

yes, thank you Damon...i couldn't figure how to explain it
*July 28, 2011*

**Math-Please help**

its the counting principle....
*July 28, 2011*

**Math-Please help**

its like 5^C3....i posted it on wednesday and Reiny responded but never answered me back....
*July 28, 2011*

**Math-Please help**

Evaluate 5C3
*July 28, 2011*

**Math**

P stands for probability
*July 28, 2011*

**Math**

Consider the Venn diagram below. The numbers in the regions of the circle indicate the number of items that belong to that region. (2 intersecting circles A & B, where A part is 50, B part is 110, and the intersecting part is 40) Determine: n(A) n(B) P(A) P(B) P(A|B) P(B|A)
*July 28, 2011*

**Math**

oh okay well thank you anyway :)
*July 28, 2011*

**Math**

yay! :) thanks! can you help me with the other problems i posted? i would greatly appreciate it! thank you :)
*July 28, 2011*

**Math**

oh okay so its 8*4*5 = 160 outfits correct?
*July 28, 2011*

**Math**

so 8 different outfits??? im confused :(
*July 28, 2011*

**Math**

17 different outfits?
*July 28, 2011*

**Math**

it is 12:17?
*July 28, 2011*

**Math**

For a trip a woman packed 8 tops, 4 skirts, and 5 pairs of shoes. How many different outfits can she wear? is it 12/17??
*July 28, 2011*

**Math-confused!**

really? i didn't think it was that easy...so it's 7/23 and 11/23???
*July 28, 2011*

**Math-confused!**

is it 11/23??
*July 28, 2011*

**Math-confused!**

A bag contains 7 lavender marbles, 11 turquoise marbles and 5 rainbow marbles. What is the chance of drawing a lavender marble? If a lavender marble is drawn then placed back into the bag, and a second marble is drawn, what is the probability of drawing a turquoise marble? ...
*July 28, 2011*

**Math**

Evaluate 5C3
*July 28, 2011*

**MATH-PLEASE HELP :(**

yes but i cannot draw how the diagram looks, so i typed how it looks....see above in parenthesis :)
*July 28, 2011*

**MATH-PLEASE HELP :(**

Consider the Venn diagram below. The numbers in the regions of the circle indicate the number of items that belong to that region. (2 intersecting circles A & B, where A part is 50, B part is 110, and the intersecting part is 40) Determine: n(A) n(B) P(A) P(B) P(A|B) P(B|A) ...
*July 28, 2011*

**MATH**

Consider the Venn diagram below. The numbers in the regions of the circle indicate the number of items that belong to that region. (2 intersecting circles A & B, where A part is 50, B part is 110, and the intersecting part is 40) Determine: n(A) n(B) P(A) P(B) P(A|B) P(B|A) ...
*July 27, 2011*

**Math**

Consider the Venn diagram below. The numbers in the regions of the circle indicate the number of items that belong to that region. (2 intersecting circles A & B, where A part is 50, B part is 110, and the intersecting part is 40) Determine: n(A) n(B) P(A) P(B) P(A|B) P(B|A) ...
*July 27, 2011*

**Math-Please help :(**

Consider the Venn diagram below. The numbers in the regions of the circle indicate the number of items that belong to that region. (2 intersecting circles A & B, where A part is 50, B part is 110, and the intersecting part is 40) Determine: n(A) n(B) P(A) P(B) P(A|B) P(B|A) ...
*July 27, 2011*

**Math**

oh yes you are correct!! thanks a million!!
*July 27, 2011*

**Math**

Each of the numbers 0 through 26 is written on a piece of paper and all of the pieces of paper are placed in a hat. One number is selected at random. Determine the probability that the number selected is even. Note: 0 is considered an even number. I think it may be 14/26?? ...
*July 27, 2011*

**Math**

yea i was having a problem because the calculator i have doesnt have the F button, but thanks for helping me...it was very confusing to me...
*July 27, 2011*

**Math**

Mary purchased a package of 13 different plants, but she only needed 9 plants for planting. In how many ways can she select the 9 plants from the package to be planted?
*July 27, 2011*

**Math-confused!**

gosh thats so confusing :(
*July 27, 2011*

**Math-confused!**

A disc jockey has 12 songs to play. Seven are slow songs, and five are fast songs. Each song is to be played only once. In how many ways can the disc jockey play the 12 songs if: *The songs can be played in any order. *The first song must be a slow song and the last song must ...
*July 27, 2011*

**Math**

It should be: like the second one you put but 5 ^C3(not the extra 5 after the C)....its very confusing to me :(
*July 27, 2011*

**Math**

Evaluate 5^C3
*July 27, 2011*

**MATH**

how do i do this??
*July 26, 2011*

**MATH**

Well its saying IF: *The songs can be played in any order. *The first song must be a slow song and the last song must be a slow song. *The first two songs must be fast songs.
*July 26, 2011*

**MATH**

A disc jockey has 12 songs to play. Seven are slow songs, and five are fast songs. Each song is to be played only once. In how many ways can the disc jockey play the 12 songs if The songs can be played in any order. The first song must be a slow song and the last song must be ...
*July 26, 2011*

**MATH-SO LOST :(**

okay...i get it now thank you Reiny :)
*July 26, 2011*

**MATH-SO LOST :(**

SO CONFUSED STILL....
*July 26, 2011*

**MATH-SO LOST :(**

A mini license plate for a toy car must consist of a number followed by two letters. Each letter must be a C, A or R. Each number must be a 3 or 7. Repetition of letters is permitted. Use the counting principle to determine the number of points in the sample space. Construct a...
*July 26, 2011*

**Math**

SO IT WOULD BE 3.08915776^11??
*July 26, 2011*

**Math**

An identification code is to consist of six letters followed by three digits. How many different codes are possible if repetition is permitted? Is it 6^3??
*July 26, 2011*

**Math**

OH OKAY SO IT WOULD BE 0.21/0.5 = 0.42??
*July 26, 2011*

**Math**

Given that P(A) = 0.5 and P(B) = 0.3, and P(A and B) = 0.21, determine P(B|A).
*July 26, 2011*

**Math**

SO IT WOULD BE B AND D?
*July 26, 2011*

**Math**

Which pair has equally likely outcomes? List the letters of the two choices below which have equal probabilities of success, separated by a comma. A standard deck of cards has 12 face cards and four Aces (Aces are not face cards). A. drawing a red seven out of a standard 52 ...
*July 26, 2011*

**Math-New Question**

ooooooh ok
*July 26, 2011*

**Math-New Question**

Ms. Sue, number of cards greater than 9 = 4 (suits) * 4 (10, j, Q, K) = 16 but that includes the 8 black cards greater than 9 already counted in the black cards. What is the final answer? I'm lost :(
*July 26, 2011*

**Math-New Question**

One card is selected from a deck of playing cards. Determine the probability of selecting: a card greater than 9 or a black card
*July 26, 2011*

**Math-New Questions**

SO ITS 1000000000-100000000 = 900000000??
*July 26, 2011*

**Math-New Questions**

oooooh i totally got lost on this....
*July 26, 2011*

**Math-New Questions**

Social Security Numbers A social security number consists of nine digits. How many different social security numbers are possible if repetition of digits is permitted? Is it 9^10?? 10 numbers correct?
*July 26, 2011*

**Math**

so it would be 1,000,000,000???
*July 26, 2011*

**Math**

Ms. Sue, wouldn't it be 9^10? I think 0 wasn't included, so it would be 10 numbers not 9.....right???
*July 26, 2011*

**Math**

Social Security Numbers A social security number consists of nine digits. How many different social security numbers are possible if repetition of digits is permitted? Is it 9^10??
*July 26, 2011*

**Math**

36/52??
*July 26, 2011*

**Math**

One card is selected from a deck of playing cards. Determine the probability of selecting: a card greater than 9 or a black card.
*July 26, 2011*

**math**

x + 2x = 90 so you would divide 2x on both sides, it would then look like this: x + 2x = 90 -- -- 2x 2x x = 45 so you would then assume that both angles measurements are 45 degrees each, which would equal to 90 degrees, because a complementary angle measures 90 degrees. hope ...
*July 23, 2011*

**To Reiny**

im not really sure how i came up with 31...i think i did 13 + 13 = 26 and then added 5 because all cards that are greater than 9....i see where i messed up....thank you Reiny! i appreciate it :)
*July 23, 2011*

**To Reiny**

oh it looks like you just answered it, thank you.....i have posted this other problem because i'm not sure if my solution is correct, but Ms. Sue never answered me back...can you help me? One card is selected from a deck of playing cards. Determine the probability of ...
*July 23, 2011*

**To Reiny**

Can you please help me with those problems i answered you back thanks! :)
*July 23, 2011*

**help**

i believe she meant to type stocks not socks lol and it looks like an assignment....textbook would definitely come in handy :)
*July 23, 2011*

**Math**

okay great! thanks :)
*July 23, 2011*

**Math**

9^9 = 387,420,489 different social security numbers are possible??
*July 23, 2011*

**Math**

A social security number consists of nine digits. How many different social security numbers are possible if repetition of digits is permitted? Oh goodness, I'm not sure what number to start with :(
*July 23, 2011*

**Math**

oh thank you Ms. Sue....so the probability would be 31/52 or 0.596??
*July 23, 2011*

**Math**

One card is selected from a deck of playing cards. Determine the probability of selecting: a card greater than 9 or a black card. hmmmmm....i don't play cards, i'm not even sure how many is in a deck...38??
*July 23, 2011*

**Math**

oh okay...thank you Reiny for your help :)
*July 23, 2011*

**Math**

1523816/303824640 = 0.005 1 - 0.005 = 0.995 or would it be 0.990 when rounded to the nearest thousandth?
*July 23, 2011*

**Math**

According to the U. S. Census Bureau, the total 2008 U.S. population was 303,824,640. The chart below summarizes the 2008 population for five U.S. States. U. S. State 2008 Population Alaska 686,293 California 36,756,666 Hawaii 1,288,198 Idaho 1,523,816 Indiana 6,376,792 SOURCE...
*July 23, 2011*

**Math-probability**

thank you Damon :)
*July 22, 2011*

**Math-probability**

Oh i forgot to ask....would i use A=Pir^2?
*July 22, 2011*

**Math-probability**

yes you are correct Ms. Sue, thank you both :)
*July 22, 2011*

**Math-probability**

so it would be 0.0330??
*July 22, 2011*

**Math-probability**

A simple dartboard has three areas… the main board has a radius of 11 inches, there is a circle with a radius of 5 inches, and the bullseye has a radius of 2 inches. What is the probability of a random dart landing inside the bullseye? Round to the nearest thousandth. I ...
*July 22, 2011*

**MATH**

The property restoration company PuroServ is considering switching to new dehumidifiers. Their market research, considering the cost of the new machines and their efficiency, tells them that the switch would give them a 54% chance of making a $20,000 profit, a 23% chance of ...
*July 22, 2011*

**MATH**

so PuroServ expects to make $9,650 with their new purchase?
*July 22, 2011*

**MATH**

The property restoration company PuroServ is considering switching to new dehumidifiers. Their market research, considering the cost of the new machines and their efficiency, tells them that the switch would give them a 54% chance of making a $20,000 profit, a 23% chance of ...
*July 22, 2011*

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