Question

The number of hours per week that the television is turned on is determined for each family in a sample. The mean of the data is 35 hours and the median is 31.2 hours. Twenty-four of the families in the sample turned on the television for 20 hours or less for the week. The 12th percentile of the data is 20 hours. Approximately how many families are in the sample?

Answer 1

Answer:

$200\ families$

Step-by-step explanation:

Already, we are given 12% of our sample size as 24.

To find the sample size, we equate to find 100%.

Let sample size be denoted by $t$

$If\ 12\%=24\\100\%=t\\t=\frac{100\%\times24}{12\%}\\=200$

Hence, the sample has 200 families.