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UkoKoshka [18]
3 years ago
14

A statistics professor asked students in a class their ages. On the basis of this information, the professor states that the ave

rage age of all the students in the university is 21 years.
This is an example of a:

A. census
B. descriptive statistics
C. an experiment
D. statistical inference
Mathematics
1 answer:
OLga [1]3 years ago
5 0

Answer:

Option D. statistical inference        

Step-by-step explanation:

We are given the following situation in the question:

"A statistics professor asked students in a class their ages. On the basis of this information, the professor states that the average age of all the students in the university is 21 years."

This is a n example of statistical Inference.

  • Statistical inference is the procedure of making inference or estimating parameters of a population with the help of test statistics.
  • In the given situation the university students are the population and the students of a particular class are sample.
  • The professor with the help of sample statistic (mean age of students in class) approximated the mean age of students in the university.
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Find three consecutive positive integers such that the sum of their squares is 2354. What is the largest integer?
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Answer:

The largest integer is 29.

Step-by-step explanation:

Let the consecutive positive integers are x, x+1 and x+2.

The square of sum of squares of three consecutive positive integers is 2354 such that,

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4 0
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tom run cross country. he runs 5 miles in 35 minutes. he runs 20 miles in 140 minutes if he keeps the same pace how long will it
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I hope this helps!

3 0
2 years ago
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