Answer:
Now that his car is 5 years old, he would like to know whether the variability of gas mileage has changed. He recorded the gas mileage from his last eight fill-ups; these are listed here. Conduct a test at a 10% significance level to infer whether the variability has changed.
Step-by-step explanation:
Answer:
23
Step-by-step explanation:
20,22,24,26
(22+24)/2 = 23
Hope this helps my bad if its wrong
Answer:
4 sqrt(7)
Step-by-step explanation:
sqrt(112)
We know sqrt(a*b) = sqrt(a) sqrt(b)
Look for perfect squares
sqrt(16*7)
sqrt(16)sqrt(7)
4 sqrt(7)
Answer:
the answer is 19.3137
Step-by-step explanation:
each of the diagonal lines are 2.84 so multiply that times 4 because there are 4 of them then add the top and bottom lines which are 4 each so 8 plus the diagonal lines which are 11.3137 and you get 19.3137.