Answer:
At least 75% of the observations lie between 16 and 28.
Step-by-step explanation:
The Chebyshev’s Theorem says:
For any numerical data set, at least of the data lie within k standard deviations of the mean, that is, in the interval with endpoints for populations, where k is any positive whole number that is greater than 1.
Given:
The interval (16, 28) is the one that is formed by adding and subtracting two standard deviations from the mean.
For k = 2, we see that , which is 75% of the data must always be within two standard deviations of the mean.
At least 75% of the observations lie between 16 and 28.
Answer:
gianas
Step-by-step explanation:
antetekumpo the nba rocket fuel
Answer:
-10.2n - 1
Step-by-step explanation:
We have two expressions in variable n and we have to add the two expressions.
An important thing to note is that only like terms can be added. i.e. the term with "n" can only be added or subtracted to the term with "n". Similarly a constant can only be added or subtracted to a constant.
Thus, the two given expressions add up to -10.2n - 1
Answer:
Stayed the same
Step-by-step explanation:
Altogether, there are 8 marbles in the bag (before Keenan adds the other marbles.) The probability so far that he draws a yellow marble is 4/8, or 1/2.
When he adds the marbles to the bag, there are 10 marbles altogether and 5 yellow marbles. The probability now is 5/10, or 1/2.
The probability has stayed the same.