Question

I don't understand .. :(


The heights in inches for five student are:

60, 67, 64, 54, 58

How would the median change if a student 68 inches tall is added to the group?

increased by 2

decreased by 1

increased by 1

no change

Answer 1

first arrange the given in increasing order

54, 58, 60, 64, 67

right?

Answer 2

Yes ...?

Answer 3

so what is the median there?

Answer 4

60 ..

Answer 5

right...now if you add 68 to the given you'll have

54, 58, 60, 64, 67, 68

what is the median this time?

Answer 6

.... 62..?

Answer 7

right..

Answer 8

so what's the difference from 60 to 62

Answer 9

it increases by two

Answer 10

right!

Answer 11

Yaaay :D Its so much easier when some one explains it step by step .. Thankyou(:

Answer 12

welcome ^_^

Answer 13

Will you help me with . one .. more problem ... ? Pleeeeeeeeease .. :D

Answer 14

sure

Answer 15

i Do not understand this one either ...
What is the approximate distance from (4, 6) to (-2,1) ?

Answer 16

you're going to use the distance formula on that one
\[\huge \text{distance} = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}\]

Answer 17

i dont know how to use it ...
would it be ..
( 4 - -2 ) ^2 + ( 6 - 1 ) ^2 ..??

Answer 18

yup

Answer 19

note: 4 - -2 will become 4 + 2

Answer 20

Okayy .. Hold on let me do the math .. lol

Answer 21

4+2 = 6 ^2 = 36 ..? + 6 -1 = 5^2 = 25 ? .. so ... 36 + 25 ? = 61 .. and the square root is ..? .. i dont understand :(( ughhhhhh

Answer 22

you're doing fine

Answer 23

7.8 ..

Answer 24

and the choices are ...

5 units

9 units

6 units

8 units

... so it would be 8 units..?

Answer 25

...? yes

Answer 26

i think so..yeah

Answer 27

Oh okay .. lol :D