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:
The answer is 5
Step-by-step explanation:
2x+7=17
2x=10
x=5
If u have more questions just ask
Brainliest Please
Answer:
It would take 336 seconds
Step-by-step explanation:
Set up as a proportion:
50 meters/21 seconds = 800 meters/x
Then we cross multiply to find the answer:
336 = x
2.77 × 10 ^ ( -3 ) is the answer
