# Posts by Jen

Total # Posts: 3,568

**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 that's correct....

**Math**

hmmmmm.....

**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. ...

**Math**

oh okay i get it...

**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 ...

**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?

**Math**

yay!!!haha...thanks!!!

**Math**

oh wait is it 10*7 = 70 different sections??

**Math**

oh i did 10/7, but is it 7/10 which is 0.7??

**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??

**Math**

ok....will do

**Math**

im confused!! :(

**Math**

2. 4/12? 3. 8/12??

**Math**

i believe the first one is 4/52? the second one is 2/12? and the last one is 4/12?

**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. &...

**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)

**Math**

yes that's what it means, but im stuck on this problem....

**Math**

im not sure what P is....

**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)

**Math-Please help**

yes, thank you Damon...i couldn't figure how to explain it

**Math-Please help**

its the counting principle....

**Math-Please help**

its like 5^C3....i posted it on wednesday and Reiny responded but never answered me back....

**Math-Please help**

Evaluate 5C3

**Math**

P stands for probability

**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)

**Math**

oh okay well thank you anyway :)

**Math**

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

**Math**

oh okay so its 8*4*5 = 160 outfits correct?

**Math**

so 8 different outfits??? im confused :(

**Math**

17 different outfits?

**Math**

it is 12:17?

**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??

**Math-confused!**

really? i didn't think it was that easy...so it's 7/23 and 11/23???

**Math-confused!**

is it 11/23??

**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? ...

**Math**

Evaluate 5C3

**MATH-PLEASE HELP :(**

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

**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) ...

**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) ...

**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) ...

**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) ...

**Math**

oh yes you are correct!! thanks a million!!

**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?? ...

**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...

**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?

**Math-confused!**

gosh that's so confusing :(

**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 ...

**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 :(

**Math**

Evaluate 5^C3

**MATH**

how do i do this??

**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.

**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 ...

**MATH-SO LOST :(**

okay...i get it now thank you Reiny :)

**MATH-SO LOST :(**

SO CONFUSED STILL....

**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...

**Math**

SO IT WOULD BE 3.08915776^11??

**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??

**Math**

OH OKAY SO IT WOULD BE 0.21/0.5 = 0.42??

**Math**

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

**Math**

SO IT WOULD BE B AND D?

**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 ...

**Math-New Question**

ooooooh ok

**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 :(

**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

**Math-New Questions**

SO ITS 1000000000-100000000 = 900000000??

**Math-New Questions**

oooooh i totally got lost on this....

**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?

**Math**

so it would be 1,000,000,000???

**Math**

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

**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??

**Math**

36/52??

**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.

**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 ...

**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 :)

**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 ...

**To Reiny**

Can you please help me with those problems i answered you back thanks! :)

**help**

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

**Math**

okay great! thanks :)

**Math**

9^9 = 387,420,489 different social security numbers are possible??

**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 :(

**Math**

oh thank you Ms. Sue....so the probability would be 31/52 or 0.596??

**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??

**Math**

oh okay...thank you Reiny for your help :)

**Math**

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

**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...

**Math-probability**

thank you Damon :)

**Math-probability**

Oh i forgot to ask....would i use A=Pir^2?

**Math-probability**

yes you are correct Ms. Sue, thank you both :)

**Math-probability**

so it would be 0.0330??

**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 ...

**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 ...

**MATH**

so PuroServ expects to make $9,650 with their new purchase?

**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 ...

**Math**

thank you Ms. Sue. I didn't realize he had responded :)

**Math**

A certain drawing states that the odds of winning are 117:168. What would be the odds against winning? Would it be 168/117??

**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 ...

**Math**

A community 5K run will award $50 to the winner. 60 people enter the race, and they each pay an entry fee of $20. Assuming they are all equally likely to win, what is a fair price for the competition? Round to the nearest cent.

**MATH-too confusing :(**

Last fall, a gardener planted 64 iris bulbs. She found that only 56 of the bulbs bloomed in the spring. a.) Find the empirical probability that an iris bulb of this type will bloom. Give answer as a fraction in lowest terms. b.) How many of the bulbs should she plant next fall...

**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 ...

**Math**

okay, but my only options to choose from are: 117:168 117:285 168:285 168:117 ??