1there are 150 students in year 9 at greensleeves school. the governors want to judge the initial
reaction of the year 9 students to a change in school uniform rules.
a what size sample should they use
10 or 50 or 100?

incomplete question. how do you expect anyone to you when you do not post the question in its entirety?

anser is a

step-by-step explanation:

negitive slope

your answer is 125y5

example answer: "to determine if a sum is reasonable you can round each number to the nearest whole and compare the estimated sum to the actual sum."

hope this you and anyone else who needs the answer : ^)