Answer:
answer 2
Step-by-step explanation:
0.4 is the answer. You divide 2.00 by 5 to get the unit rate, then you multiply the answer of 2.00÷5 by 1.00. You can check and see if my answer to the questions is right.
Answer:
52
Step-by-step explanation:
Number of Students in Key Stage 3 =380
Number of Students in Key Stage 4 =240
Number of Students in Key Stage 5 =110
Total = 380+240+110=730
Since a sample of 100 students stratified by key stage is needed.
The number of students that would be taken from Key Stage 3
Subtract the given score x from the mean µ and divide it by the standard deviation σ :
z = (x - µ) / σ = (302 - 300) / 20 = 0.1
I bet its 4 try that number and youll see that im maybe right