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sleet_krkn [62]
3 years ago
7

A researcher interested in vocabulary development obtains a sample of twenty 3-year old children to participate in a research st

udy. 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
Mathematics
1 answer:
Andreyy893 years ago
4 0

Answer: b) statistic

Step-by-step explanation:

  • Population = A large groups of individuals sharing the same or similar characteristic by the point og study.
  • Sample  = It is a subset of population .
  • Parameter = It is measure of characteristic in population.
  • Statistic =  It is measure of characteristic in sample.

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<u> statistic</u>.

Hence, the correct option is b) statistic .

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Choose the statement that tells how the area of the reduced design compares to the area of the original design.
timama [110]

The original is 5cm, the reduced is 2.5cm

2.5/5 = 0.5 = 1/2

Area is a square measurement, so the area of the reduced image would be the scale squared, which would be 1/2^2 which = 1/4

The answer is:

The area of the reduced design is 1/4 of the area of the original.

8 0
3 years ago
Read 2 more answers
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pochemuha

Step-by-step explanation:

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2 years ago
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earnstyle [38]

Answer:

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Step-by-step explanation:

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3 years ago
What is the cost if a $1,200 washing machine after a discount if 1/5 the original price
Fantom [35]
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6.3 + |8.7 + (-6.8)|
igor_vitrenko [27]

Answer:

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Step-by-step explanation:

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