Given
49, 34, and 48 students are selected from the Sophomore, Junior, and Senior classes with 496, 348, and 481 students respectively.
To find:
Which of these types of sampling is used: random, stratified, systematic, cluster, convenience?
Explanation:
It is given that,
49, 34, and 48 students are selected from the Sophomore, Junior, and Senior classes with 496, 348, and 481 students respectively.
That implies,
Since Stratified random sampling is a method of sampling that involves dividing a population into smaller groups–called strata.
Then, the random sampling used is Stratified Random Sampling.
Answer:
None of these.
Step-by-step explanation:
Mario's age= n
Therefore,
Josie's age= 2n+4
I’m not sure if this is how you’re supposed to write the summary statement, but I got the answer of (2x+3)(x-1)(-2/(x-2)) (see photo to see my work
Frank had $19.60 dollars when he left home that morning. If you add the $5.60, $2.00, and $6.50 that he spent while he was away from home, because he had that money when he left, you get a total of $24.60. You should then subtract the $5.00 his friend gave him, since he didn't have that when he left home. This brings you to a total of $19.60, which is the amount Frank left home with.
Grace's height and the tree's height are related by equivalent ratios
The height of the tree is 2.00 meters
Grace's height is given as:
When she measured the length of the tree's shadow, we have:
--- the length of her shadow
--- the length of the tree's shadow
The height (H) of the tree is calculated using the following equivalent ratio
Substitute known values
Express as fractions
Multiply both sides by 1.65
Simplify
Hence, the approximated height of the tree is 2.00 meters
Read more about equivalent ratios at:
brainly.com/question/13513438
