Answer:
The standard error increases and the width of the interval increases
Step-by-step explanation:
The variance is equal to the square of the standard deviation. An increase in variance will increase the standard deviation.
The width of the confidence interval can be defined as:
The width is proportional to the standard deviation, so when the variance increases, the standard deviation and also the width of the interval increases.
Answer:
(x+1)(x+2)
Step-by-step explanation:
Answer:
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The numbers of gallons bought every stop are extraneous...you can ignore them. Add 1.68, 1.76 and 1.65 together and divide the total by three. The average is 1.69
Answer:
2000 represents the original amount of butterfly's
3/4 represents the change in butterfly's
To find c) plug 3 in for t and solve.