Pre-Alegbra Help!?! I will answer your questions if you help me!?

Question

which measure would you use to describe the difference in height of five friends?

a. lower quartile

b. mean

c. median

d. range

how many ways can 5 students line up to buy lunch?

a. 6

b. 36

c. 120

d. 720

two dice are rolled. find the probability for rolling an odd number on one die and a 6 on the other.

a. 1/12

b. 1/2

c. 1/6

d. 1/36

an 8-sided die is rolled. what is the probability of rolling a 3 or an even number?

a. 5/8

b. 1/8

c. 1/2

d. 1/4

Answer 1

1.  Range

2. Not 6, because thats to little, and 120 or 720 is ridiculous so its 36.

3. Well there are 3 even numbers and 3 odd numbers on a dice. So u have 3/6 chance of getting and odd or and even number. Now double that. So... 6/12.  That reduced to B: 1/2.

4. If there are 8 sides, taht means that 4 are even, and then plus the single "3." So thats 4 +1 = 5. So u have a 5/8 chance.

Answer 2

1.The correct answer is d for the first one. Range is when you take the biggest number and then subtract the smallest from it.

2. The correct answer is d. You would do 5x5x5x5x5 since there are five spaces possible and five students possible for each space.

3. There are six sides on a die obviously. The chances of rolling the odd number on one die is 3/6. The chance of rolling a six on the other is 1/6. So then you would multiply the two and get the answer 3/6 or 1/2 as the answer

4. The chance of rolling a three would be 1/8 and the chance of rolling an even number would be 4/8. Now since you are using the same die for both you would add instead. so the answer would be 5/8.

I might be wrong, but I have a pretty good feeling about it since I've already graduated high school.

Answer 3

D

C

A

A

Edit: N.H. and Cheyenne, #2 would not be D. 5^5 is 3,125. You solve this problem by doing 5x4x3x2x1, or 5!

Answer 4

d

c

a

a

_/

Answer 5

1. D

2. C

3. A

4. A