Before raw data can be used as scientific evidence, it must be analyzed and summarized. one way of summarizing data is to find the mean, or average, of a set of data points. what method is used for calculating the mean?
adding the values of all the data points and dividing by the number of data points
dividing the value of each data point by the total value of all the data points
multiplying the values of the highest and lowest data point, and then dividing by two
subtracting the highest value among the data points from the lowest value

Answer : Option A) adding the values of all the data points and dividing by the number of data points.

Explanation : Before raw data can be used as scientific evidence, it must be analyzed and summarized. One way of summarizing data is to find the mean, or average, of a set of data points.

Usually the most widely used method for finding out the mean of the observations, is by adding all the data points and then divide the total of addition by the number of observations of data points in a set.

This will give the mean or the average of that set of data.

For example, if x no. of observations are there in a set of data and the total is y.

Then the mean will be (M) = y/x.

cardiovascular system

mark as brainliest

there are 35 white marbles

step-by-step explanation:

y- yellow marbles

4y + 5 = 45

subtract 5 from both sides

4y = 40

divide for from both sides

y = 10

plug in 10 to get 40 yellow marbles then subtract by 5 to get 35 marbles

thus there are only 10 yellow marbles