21 rounded to the nearest 10 is 20 :)
Answer:
B. 66-18=28+20
Step-by-step explanation:
Answer:
a) 2.5% b) 50%
Step-by-step explanation:
1300 is two standard deviations higher than the mean. Since 95% of the data is covered within two standard deviations to the left and right of the mean, 5% is not covered. So, we have 2.5% leftover on the left side of the curve, under 900, and 2.5% leftover on the right side of the graph that is above 1300.
The mean is 1100, so anything above or below the mean is exactly 50% in a normal distribution.
Answer: If the team has one 3 out of 4 of their games, the ratio is 3/4, or 75%
Step-by-step explanation:
