Michael gets test grades of 73, 77, 82, and 86. He gets a 93 on his final exam. Find the weighted mean if the tests each count f
1 answer:
Answer:
84.9
Step-by-step explanation:
The weighted mean is given by the sum of the products of each grade by its respective weight. If the first four grades correspond to 15% of the final grade each, and the final exam is equivalent to 40% of the final grade, Michael's final grade is:
Michael's final weighted mean is 84.9.
You might be interested in
Using the Central Limit Theorem, it is found that:
- The mean is 0.23.
- The standard deviation is
.
- It states that for a <u>proportion p in a sample of size n</u>, the sampling distribution of sample proportions has mean
and standard deviation
- When two variables are subtracted, the mean is the subtraction of the means, while the standard deviation is the square root of the sum of the variances.
In 2006, 95% of new cars in the US came with a spare tire, with a sample of 250, hence:
In 2017, 72% of new cars in the US came with a spare tire, with a sample of 250, hence:
Hence, for the distribution of differences:
To learn more about the Central Limit Theorem, you can take a look at brainly.com/question/16695444
Answer:
The price of candy bar is 75 cents
Step-by-step explanation:
Let c be the price of candy bar and d be the price of drinks
Then according to given statements
Multiplying equation 1 by 2
Subtracting equation 2 from equation 3
Dividing both sides by 130
Putting d=2 in equation 1
Price of candy bar is $0.75 or 75 cents
Hence,
The price of candy bar is 75 cents