# Posts by Jen

Total # Posts: 3,504

**Math-probability**

If the odds of winning a raffle are 2:240, what is the probability of winning? I think it's 2/240??

*July 30, 2011*

**Math**

The 1st quartile (lower quartile) is 34 and the 3rd quartile (upper quartile) is 61. The lower quartile is the middle value of the lower half. The upper quartile is the middle value of the upper half. is that correct??

*July 30, 2011*

**Math**

yay!! thanks!! but what about the second part: Compute the 1st quartile and 3rd and interpret their meanings. ?? im confused

*July 30, 2011*

**Math**

the mean is 2044/16 = 127.75 the median is 125 + 125 = 250/2 = 125 the range is 171 - 89 = 82 Am i correct?

*July 30, 2011*

**Math**

The number of dry cleaning orders picked up at Sunny Fresh Dry Cleaners was sampled over 12 hour periods. Below is the sample: 142 171 125 91 140 125 97 125 162 142 125 117 89 125 140 128 From this data set, compute the sample mean, median, mode and midrange. Compute the 1st ...

*July 30, 2011*

**Math**

thanks Ms. Sue, that really helped :)

*July 30, 2011*

**Math**

The number of dry cleaning orders picked up at Sunny Fresh Dry Cleaners was sampled over 4 hour periods. Below is the sample: 61 58 67 52 25 64 38 49 51 61 58 61 27 61 58 34 Construct a stem and leaf plot of the data. I have no idea ??

*July 30, 2011*

**Math**

still have no idea....

*July 30, 2011*

**Math**

Write the statement in symbols using the p and q given below. Then construct a truth table for the symbolic statement and select the best match. p = I eat too much q = I'll exercise. I'll exercise if I eat too much. Is it q->p?? I do not know how to do the truth ...

*July 30, 2011*

**Math**

The theoretical probability of undesirable side effects resulting from taking Grebex is 1 in 20. If 100 people take Grebex to lower their blood pressure, how many will encounter undesirable side effects? Would it be 5 people that will encounter undesirable side effects??

*July 29, 2011*

**Math**

What is the exact circumference of a circle with a diameter of 21 inches? Is it 110.25p inches??

*July 29, 2011*

**Math**

Write the statement in symbols using the p and q given below. Then construct a truth table for the symbolic statement and select the best match. p = I eat too much q = I'll exercise. I'll exercise if I eat too much. Is it q->p?? I do not know how to do the truth ...

*July 29, 2011*

**Math**

yay! i get it now :) thanks!

*July 29, 2011*

**Math**

so its: If the grass grows too tall, then I did not mow the lawn??

*July 29, 2011*

**Math**

Form the converse: If I do not mow the lawn, then the grass grows too tall. Is it: If the grass does not grow too tall, then I did not mow the lawn??

*July 29, 2011*

**Math**

thanks a million!

*July 29, 2011*

**Math**

(90) + (138) - (48) = 180 + 32 = 212 ??

*July 29, 2011*

**Math**

The National Association for Women in Science asked recent high school grads if they had taken certain science classes. Of those surveyed, 90 said they had taken physics, 138 said they had taken chemistry and 45 said they had taken both. Thirty-two said they had taken neither...

*July 29, 2011*

**Math**

yes :) thanks

*July 29, 2011*

**Math**

because its the amount in the {}

*July 29, 2011*

**Math**

The cardinal number of the set {cat, dog, horse, fish, lizard, meerkat, rhinoceros, elephant, giraffe, platypus, hippopotamus, skunk} is ____. I think its 12 right?

*July 29, 2011*

**Math**

still working on it...

*July 29, 2011*

**Math**

great! thanks!

*July 29, 2011*

**Math**

Given the situation described, identify the type of sampling involved. Students at Local U are classified according to the progress toward their degree program as freshmen, sophomores, juniors, seniors and nonmatriculating, then random samples from each class are taken. I ...

*July 29, 2011*

**Math**

The number of dry cleaning orders picked up at Sunny Fresh Dry Cleaners was sampled over 12 hour periods. Below is the sample: 142 171 125 91 140 125 97 125 162 142 125 117 89 125 140 128 From this data set, compute the sample mean, median, mode and midrange. Compute the 1st ...

*July 29, 2011*

**Math**

The number of dry cleaning orders picked up at Sunny Fresh Dry Cleaners was sampled over 4 hour periods. Below is the sample: 61 58 67 52 25 64 38 49 51 61 58 61 27 61 58 34 Construct a stem and leaf plot of the data. ??

*July 29, 2011*

**Math**

thats it? oh i wasn't sure if that's how you answer it...it seemed simple, but i thought it was a trick question or something, haha...thanks Ms.Sue :)

*July 29, 2011*

**Math**

Haley was told that her systolic blood pressure reading of 123 was in the 56th percentile for people aged 16-24. Interpret its meaning. Im not even sure about this question....

*July 29, 2011*

**Math**

Given the situation described, identify the type of sampling involved. Students at Local U are classified according to the progress toward their degree program as freshmen, sophomores, juniors, seniors and nonmatriculating, then random samples from each class are taken. I ...

*July 29, 2011*

**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 don't 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 that's 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 that's 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 that's 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*