Answer:
0.97725
Step-by-step explanation:
Given that Professor Heinz has given the same multiple-choice final exam in his Principles of Microeconomics class for many years. After examining his records from the past 10 years, he finds that the scores have a mean of 76 and a standard deviation of 12.
i.e.
Std error of mean = sigma/sqrt n = 2
Thus the sample mean is N(76,2)
Required probability = probability that a class of 36 students will have an average greater than 72 on Professor Heinz's final exam.
=
1/5, 5/8, 2/3 from least to greatest.
1/5 = 0.20 x 100% = 20%
5/8 = 0.625 x 100% = 62.50%
2/3 = 0.667 x 100% = 66.70%
It is easier to convert dissimilar fractions into decimals to know which fraction has greater or lesser value compared to the other fractions.
Answer:
4 square centimeters
Step-by-step explanation:
2x1 =2 ×2=4
Answer:
58.29cm²
Step-by-step explanation:
The formula for the area of a trapezium is ×(sum of parallel lines)×height
×(7+10.4)×6.7 = ×17.4×6.7
= 58.29cm²
Answer:
r = 1.3
Step-by-step explanation:
Another Answer is Futile