NEED HELP PLS FASTBrittany conducted a series of surveys to gather data on the ages of pet cats. The sample means for each survey are shown in the table. Sample
Sample Mean (years)
15.09
1
2
14.45
3
14.91
4
15.09
5
14.91
6
15.82
7
14.36
8
15.55
9
14.36
10
15.27
Use this information to complete the statements.
The average of the sample means is
As the number of surveys conducted increases, the average of the sample means approaches the

Apublic library wants to place 4 magazines and 9 books on each display shelf. the expression 4s+9s represents the total number of items that will be displayed on s shelves. simplify the expression

Now max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a) the median of max’s data is 250 b) more than half of the data points max recorded were 177 centimeters. c) a data point chosen at random is as likely to be above the mean as it is to be below the mean. d) every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.

When x = 3 and y = 5, by how much does the value of 3x2 – 2y exceed the value of 2x2 – 3y ?