While at summer camp, mike asked a random camper from each of the 12 cabins how many siblings he or she had. the results below display the responses. 3, 2, 0, 1, 0, 2, 3, 4, 1, 2, 2, 1 if there are 48 campers altogether, use mike’s data to infer the mean of the population. what is the mean number of siblings for the population rounded to the nearest unit?

The mean number of siblings for the population rounded to the nearest unit is:

                                     2

We know that a mean of a data is the average of the data points i.e. it is calculated as the ratio of the sum of all the data to the number of data points.

Here we have a total of 12 data points such that the value is given by:

3, 2, 0, 1, 0, 2, 3, 4, 1, 2, 2, 1

Now, the mean of this data is calculated as:

Hence, round to the nearest unit the mean of the data is: 2

the polynomial is a perfect square trinomial of the form a^2-2ab+b^2:

option a. true

step-by-step explanation:

9x^2-12x+4

comparing with the form a^2-2ab+b^2

1.) a^2=9x^2

solving for a: square root both sides of the equation:

sqrt(a^2)=sqrt(9x^2)

a=sqrt(9) sqrt(x^2)

a=3x

2.) b^2=4

solving for b: square root both sides of the equation:

sqrt(b^2)=sqrt(4)

b=2

to be a perfet square trinomial 2ab must be equal to 12x. let's check:

2ab = 2 (3x) (2)

2ab = 12x

correct