I the average score is 750 and standard deviation ( sigma ) is 50 points, then score 700 - 800 is between (750 - 1 sigma) and (750 + 1 sigma).
That is 34.1 % + 34.1 % = 68.2 % of the whole population.
2,000 · 0.682 = 1.364
We expect 1,364 students to score between 700 and 800 points.
Answer:
Are you asking for the selling price? If yes the answer should be $50 x (1+25%) = $62.5
22/400
Divide top and bottom by 2. 2 into 22 is 11 and 2 into 400 is 200.
11/200.
No other number can go into 11 and 200.
= 11/200 in Simplest form.
Answer:
x=1
Step-by-step explanation:
2x+3=5
2x=5-3
=2
x= 2÷2
= 1
