2. a pet food company wants to know the number of pets owned by adults ages 21 to 70. the frequency table shows the data from a simple random sample of the targeted population. total pets owned 1 2 3 4 5 6 7 number of adults 248 567 1402 728 419 456 203 what is the estimated mean for the population? explain your answer and show your work.

Answer

     526.857

Explanation

Mean = (Σfx)/(Σf)

Σfx = 248 + 2(567) = 3(1402) + 4(728) + 5(419) + 6(456) + 7(208)

      =  14,752

Σf =  1+2+3+4+5+6+7

    = 28

Mean = (Σfx)/(Σf)

          =  14,752/28

          = 526.857

The estimated mean is the average of the data give. It is in form of a grouped data so I used to formula;

mean = (Σfx)/(Σf)

5x+40

5(x + 8)

7x - 49

7(x - 7)

18x + 9

9(2x + 1)

15x - 10

5(3x - 2)

step-by-step explanation:

for number one all you have to do is factor 5 out of 5x + 40

for number 2 factor 7 out of 7x - 49

for number three factor 9 out of 18x + 9

for number four factor 5 out of 15x - 10