Answer:
Sometimes the best way to tell whether two variables are associated is to ask yourself whether they are not associated. Think backward. In a two-way frequency table, if the relative frequencies for one variable are the same (or close) for all categories of another variable, there is no (or little) associa
<em><u>Correct steps are shown</u></em>
<em><u>Correct simplified expression is:</u></em>
<em><u>Solution:</u></em>
<em><u>Given that: Mara simplifies the expression</u></em>
<em><u>Correct steps are:</u></em>
From given,
<em><u>Use the distributive property,</u></em>
a(b + c) = ab + bc
Therefore,
Group the like terms
Thus the expression is simplified
Answer:
The slope of the line is 1 , because the slope of another line parrallel to it is 1 and we know the when two lines are parralel the slope are equal
Answer:
NO.
Step-by-step explanation:
From the question, we are given a random sample of 20 automotive batteries, a confidence interval =(0.22,0.33). Also, the population standard deviation is said to be less than 0.26 hour.
The confidence interval does NOT suggest that the variation in the batteries' reserve capacities is at an acceptable level.
REASON: If you look at the confidence interval, we can see that it contains the value for the standard deviation that is 0.26 and even MORE value than 0.26.
This does not give us any suggestion that the standard deviation is less than 0.26.
