Answer: a
Step-by-step explanation:
The graph has a vertex at x=3, so eliminate d and e.
The graph's vertex is at x=1, so eliminate c.
The graph opens upward, so eliminate b.
The answer should be 9, hope that helped ‘
Step-by-step explanation:
The difference in the formula of population and sample variance can be explained as:
Population variance is said to be the value of variance that is calculated from population data, whereas sample variance refers to the variance calculated from sample data. This is the reason why value of denominator in the formula for variance in case of sample data is ‘n-1’, while it is ‘n’ for population data. Hence, the result of both variance and standard deviation derived from sample data is larger than those found out from population data.
They seem to be very descriptive and use lots of examples of nature.
Answer:So that's the change in Y. Now notice that X is increasing. By one unit each time. So we can calculate the slope. The slope is the change in Y divided by the change in X
Step-by-step explanation:
