Question

find the frequency of 8 , plse see the attachment

Answer 1

The frequency tells you how many of the x's you have of that value.
for example you have 2 ones and 3 twos, and so on.
write them all out
the median is 4, so 4 is the middle number. half of the numbers are below 4 and half above 4

can you try to do the problem ?

Answer 2

i have tried , but not geting the answer

Answer 3

if you add up the frequencies of all the numbers below 4, you get 9
for 4 to be the median, the frequencies of the numbers above 4 must also add to 9

Answer 4

as n is even, so,
n/2 and (n/2)+1 th term
8/2 and (8/2)+1 th term
4 and 5 th term

Answer 5

how do you get n is even ? you can choose the frequency of 8 so you get an odd #

Answer 6

i didn't get u

Answer 7

if we "decode" the info, we get a sequence
1 1 2 2 2 3 3 3 3 4 5 5 6 6 6 6 7 7 with an unknown # of 8's

Answer 8

we are told the median of that sequence is 4.
there are 9 numbers below 4 (count, or add up the frequencies)
so you want 9 numbers above 4

Answer 9

k

Answer 10

so how many 8's do you tack on to the sequence so that 4 is the median ?

Answer 11

9

Answer 12

i think i did a mistake
because i trying to understand , but i m not getting it

Answer 13

Here is an example

If you had the numbers 1 2 3
but you had repeats like this
1 1 1 2 2 3 3
you would write this as
x 1 2 3
f 3 2 2
that says you have 3 1's, two 2's and two 3's

the median of the numbers
1 1 1 2 2 3 3
is the middle number