Answer:
If we use a graphing tool or a calculator, we can easily plot the equation provided.
Please see the attached images, where we can find the center of the ellipse, the intercepts and more information about the graph.
The number halfway between 200 and 300 is 250
Answer:
Step-by-step explanation:
Given that the Acme Company manufactures widgets, which have a mean of 60 ounces and a standard deviation of 7 ounces
We know that 95% of the area lie between -2 and 2 std deviations from the mean.
i.e. Probability for lying in the middle of 95%
Z score 
Between 46 and 74 oz.
b) Between 12 and 57
convert into Z score

P(-6.86<z<-0.43)
=0.5-0.1664=0.3336
c) X<30 gives Z<-4.83
i.e. P(X<30) =0.00
Answer:
Answer below
Step-by-step explanation:
2.08
2.082
2.8
2.82
√8 (it's 2.8284)