Question

Medal Given and fan

Answer 1

Here is the question

Answer 2

(a) Stratified sampling is a technique to ensure that a sample is representative of the population, in cases where a simple random sample might give a sample that is different from the population. A stratified sample uses separate random samples of exactly the same size taken from each group of the population.

Answer 3

ok, I've already worked that one out. What is the answer to part two.

Answer 4

@ganeshie8 @amistre64 @ParthKohli @ParthKohli @Preetha

Answer 5

wouldnt it idealy be the same ratio?

Answer 6

the population ration is 314 out of total number of population ....

Answer 7

does this make sense?

Answer 8

so, \[\frac{ 314 }{ 599 }\]

Answer 9

thats the ratio we would expect yes

so if we divide 50 by 599, and multiply it by 314, we get the expected value in a sample size of 50

Answer 10

\[599,\div 599,*314=314\]
\[50,\div 599,*314=??\]

Answer 11

26.6 = 27

Answer 12

yep, so ideally we would expect 27 people in the sample size of 50 to be over the age of 60