Answer:
The responsess to the given question can be defined as follows:
Step-by-step explanation:


As per the given info we draw the tree diagram which is defined in the attachment file.


Which sampling method divides the population up into sections, randomly selects some of those sections, then chooses all the members from the selected sections to study?
Answer: The above mentioned type of sampling is called cluster sampling.
Cluster sampling is a sampling technique in which the entire population of interest is divided into clusters or groups, then the investigator randomly selects some of these clusters and all the members of these randomly selected clusters are investigated.
The mean absolute deviation for the number of hours students practiced the violin is 6.4.
<h3>What is the mean absolute deviation?</h3>
The average absolute deviation of the collected data set is the average of absolute deviations from a center point of the data set.
Given
Students reported practicing violin during the last semester for 45, 38, 52, 58, and 42 hours.
The given data set is;
45, 38, 52, 58, 42
Mean Deviation = Σ|x − μ|/N.
μ = mean, and N = total number of values
|x − μ| = |45 − 47| = 2
|38− 47| = 9
|52− 47| = 5
|58− 47| = 11
|42− 47| = 5
The mean absolute deviation for the number of hours students practiced the violin is;

Hence, the mean absolute deviation for the number of hours students practiced the violin is 6.4.
To know more about mean value click the link given below.
brainly.com/question/5003198
Answer: Do you need it all of it?
Step-by-step explanation:
Answer:
500 g flour = 600 g
6*1.2 g salt = 7.2 g
12*1.2 g yeast = 14.4 g
30 mL oil = 36 mL
360 mL water = 432 mL
Step-by-step explanation:
10 bread rolls requires 500g of flour.
Eli uses 600g of flour which is 1.2 times the amount needed for 10 bread rolls.
This means that 1.2 * 10 bread rolls are made which is 12 bread rolls.
Multiply the remaining ingredients by 1.2:
500 g flour = 600 g
6*1.2 g salt = 7.2 g
12*1.2 g yeast = 14.4 g
30 mL oil = 36 mL
360 mL water = 432 mL