Posted by Gabby on Friday, April 19, 2013 at 9:02pm.
Use the information below to answer questions 1–5.
You can write the letters K-A-N-S-A-S on cards and mix the cards in a hat.
What is the probability of picking an N? (1 point)
five over one
six over one
What is the probability of picking an S? (1 point)
What is the probability of picking a vowel? (1 point)
What are the odds in favor of picking an S? (1 point)
What are the odds against picking an S? (1 point)
two over one
A spinner is divided into 10 equal sections numbered from 1 to 10. You spin the spinner once. Find P(5).
A bag contains 7 green marbles and 4 white marbles. You select a marble at random. What are the odds in favor of picking a green marble? (1 point)
A bag contains 7 green marbles, 9 red marbles, 10 orange marbles, 5 brown marbles, and 10 blue marbles. You choose a marble, replace it, and choose again. Find P(red, then blue). (1 point)
seventy-seven over one hundred sixty-four
nineteen over forty-one
ninety over one thousand six hundred and eighty-one
forty-five over forty-one
You have four $1 bills, two $5 bills, five $10 bills, and five $20 bills in your wallet. You select a bill at random. Without replacing the bill, you choose a second bill. Find P($1, then $10). (1 point)
nine over thirty-nine
five over sixty-four
three over eighty
A basket contains the following pieces of fruit: 3 apples, 2 oranges, 2 bananas, 2 pears, and 5 peaches. Jonas picks a fruit at random and does not replace it. Then Beth picks a fruit at random. What is the probability that Jonas gets a peach and Beth gets an apple? (1 point)
fifteen over one hundred eighty-two
eight over twenty-seven
four over ninety-one
fifteen over one hundred ninety-six
The probability of a basketball player hitting a foul shot is one-third. How many shots would you expect her to make in 90 attempts? (1 point)
Simplify 8P3. (1 point)
How many ways can 3 students be chosen from a class of 20 to represent their class at a banquet? (1 point)
You and 3 friends go to a concert. In how many different ways can you sit in the assigned seats? (1 point)
You own 5 pairs of jeans and want to take 2 of them on vacation. In how many ways can you choose 2 pairs of jeans? (1 point)
- I will be posting my answers in a sec
(also these are 2 lessons together so it's a bit extensive umm again srry lol)
- 7th Grade Math Ms. Sue! - Gabby, Friday, April 19, 2013 at 10:39pm
Ok are these correct Ms. Sue, Write Teacher, Knight, or Steve???
- 7th Grade Math Ms. Sue! - Ms. Sue, Friday, April 19, 2013 at 10:50pm
To begin -- I don't know the answers for 8, 10, 11, 13-16.
You didn't post # 9.
Do you have an error in number 5?
Other than that, I found only one of your answers to be correct. Number 1 is correct.
Since I may be wrong, I urge you to go back over your lesson to make sure you still think your answers are correct.
Then repost these questions along with your answers -- but post no more than five questions and answers in each post. Do not put any name on it so that real math teachers will respond!
- 7th Grade Math Ms. Sue! - Reiny, Friday, April 19, 2013 at 11:00pm
Here are my answers:
1A 2C 3C 4A 5B 6C 7B 8C 10D 11A 12A 13B 14C 15C 16A
They should have posted the answers to #4 and #5 in the form a:b, that is how odds are expressed.
After all , they did it correctly in #7
Remember, odds are similar to probabilities.
the odds in favour of some event
= prob(the event happens) : prob(event does not happen)
- 7th Grade Math Ms. Sue! - Gabby, Friday, April 19, 2013 at 11:28pm
OMG THX SOOO MUCH REINY lol.
However I will make sure to do it all myself so that I'm not cheating but will look over my whole lesson again THX AGAIN~!!!
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