Determine whether the given value is a statistic or a parameter.

A sample of students is selected and it is found that 50 % own a computer.

a.Parameter because the value is a numerical measurement describing a characteristic of a sample

b.Statistic because the value is a numerical measurement describing a characteristic of a population

c.Statistic because the value is a numerical measurement describing a characteristic of a sample

d.Parameter because the value is a numerical measurement describing a characteristic of a population

19. The ages(in years) of a random sample of shoppers at a gaming store are shown. Determine therange, mean,variance, and standard deviation of the sample data set.

12.16,23,14,18,18,22,18,14,18

The range is _

20. Heights of men on a baseball team have abell-shaped distribution with a mean of 178 cm

and a standard deviation of 6 cm. Using the empiricalrule, what is the approximate percentage of the men between the followingvalues?

a. 172 cm and 184

b. 160 cm and 196

a. _% of the men are between 172cm and 184 _cm

round to one decimal place as needed

21. The mean value of land and buildings per acre from a sample of farms is $1400, with a standard deviation of $300. The data set has abell-shaped distribution. Assume the number of farms in the sample is 70

(a) Use the empirical rule to estimate the number of farms whose land and building values per acre are between $800 and $2000

_farms (round to the nearest whole number as needed)

23. Find thefive-number summary, and(b) draw abox-and-whisker plot of the data.

3 8 8 6 2 9 8 7 9 6 9 5 2 6 2 9 8 7 7 9

a. Min= _ Simplify your answer