A researcher interested in vocabulary development obtains a sample of twenty 3-year old children to participate in a research study. The average (i. e., mean) score for the group of 20 is an example of a(n). a) sample
b) statistic
c) population
d) parameter

b) statistic

Step-by-step explanation:

Since the average score was taken by the group of 20 which is nothing but the sample.

That means, the average score is an example of statistic.

Hence, the correct option is b) statistic .

6mm^3 or .6cm^3

      216

      /   \

  36     6

  /   \     /

6     6   6

factor trees are nice.

the total estimated nappy use.=10,500,000

step-by-step explanation:

given that on an average the average baby uses 3528 napkins.

in a particular year 2014, the number of births were 299697 in new south wales.

rounding off the number of births to the nearest hundred thousand we have

no of birtsh = 300000

also rounding off the average usage to nearst thousand we get

average use of a baby = 3500

hence total number of nappy estimated to be used = 3500x300000

= 10,500,000

answer is 10,500,000 nappies