Answer:
70.06
Mean score = 70
Step-by-step explanation:
16% of students scored higher than 80 on a recent normally distributed exam the standard deviation is 10 what is the mean
For a normal distribution :
Zscore = (x - mean) / standard deviation
x = score
P(Z > 80) = 16% = 0.16 ; corresponding Zscore = 0.994 (Z probability calculator)
Therefore ;
0.994 = (80 - mean) / 10
0.994 * 10 = 80 - mean
9.94 = 80 - mean
Mean = 80 - 9.94
Mean = 70.06
Hence, the mean score = 70.06 = 70
1488 labels divided by 16 labels equals 93. So the answer is D.
How many 1/3 cups blueberry can you get out of the 4/5 cup..
= (4/5) / (1/3)
= (4/5)*(3/1)
= 12/5
= 2 2/5 batches
Answer:
B
Step-by-step explanation:
Hope this helps!
A reference angle is formed by the terminal side and the horizontal axis (aka x axis). Replace each "access" with "axis" as those are typos. By definition, a reference angle is between 0 and 90 degrees so the angle is always acute.
Answer: Choice B
