Answer:
73.5
Step-by-step explanation:
To find the mean, sum the data and divide by the amount of data
mean = 
=
= 73.5
Answer:
19.6 cm²
Step-by-step explanation:
If a circle fits perfectly inside of a square, then its diameter is equal to the length of sides of the square.
The area of a circle is given by:

In this problem, d = 5 cm, the area of the circle is:

The approximate area of the circle is 19.6 cm².
Answer:
- Implied population is all listeners of the radio talk show
- the variable is opinion of a listener
- Yes, bias is voluntary response. Those with the strongest opinions are most likely to call in.
Step-by-step explanation:
Radio talk show host asked listeners to respond therefore the population is all listeners of the radio talk show.
The variable is the response "yes" or "no"
There is voluntary response bias, because the respondents are volunteered to answer, therefore sample is consisted of self-selected listeners.