Question

As cars passed a checkpoint, the following speeds were clocked and recorded.
Speed (mph): 55 62 61 54 68 72 59 61 70

15. Find the mean and the range of the data set.




16. What are the minimum, first quartile, median, third quartile, and maximum of the data set?

Answer 1

@yrelhan4

Answer 2

@allie_bear22

Answer 3

i need help D:

Answer 4

i have no idea srry

Answer 5

its cool

Answer 6

@thomaster
@Cookieyumm

Answer 7

Let's start with 15

Answer 8

ok

Answer 9

Do you know, by definition, what a mean is?

Answer 10

haha.....no (/./)

Answer 11

That's alright (:
A mean is a fancy word for the average.
To find the average of any set of numbers, add them all together, and then divide by how many numbers you added up.

Answer 12

ohhh lol

Answer 13

In this case, your equation would be:
55+62+61+54+68+72+59+61+70
And then tell me your answer, then divide your answer by 9.

Answer 14

k give me sec lol

Answer 15

okay

Answer 16

i added those all together and got 562..is that wht u have?

Answer 17

Yepp now divide by 9

Answer 18

62.444444444444444444444444444444 ? (/./)

Answer 19

Yes but you can pretty much round to 62.4 :P

Answer 20

ohh THANK YOU!! :) ~(^.^)~

Answer 21

To find the range, you first need to find the largest number in your set of data and the smallest number in your set of data.
In this case, your smallest number is 54 and your largest number is 72.
Simply subtract and you have your range :P

Answer 22

You're welcome! It's easy once you get the hang of it and you're catching on well (:

Answer 23

yeah i thgt it was all complicated i was like "i cant do this o.0" then im like "omg this stuff is easy" lol

Answer 24

so like 18?

Answer 25

Haha exactly (:
Number 16 is talking about box and whisker plots which are a bit mroe difficult, but all the same get easier.

And yes the range is 18

Answer 26

ok i think ima tag you in all my questions cuz like u taught me well my friend lol :P

Answer 27

Haha no problem (:
I might not be able to respond right away, but I promise I will try :P
Want some help with 16?

Answer 28

um nahhh i got this LOL

Answer 29

thanks again tho :P

Answer 30

You're welcome again XP