Answer:
Step-by-step explanation:
It is convenient to let technology help out. Some graphing calculators will accommodate a model of your choice. Others are restricted to particular models, of which yours may not be one.
A spreadsheet solver may also offer the ability to optimize two variables at once. For that, you would write a function that gives the sum of the squares of the differences between your data points and those predicted by the model. You would ask the solver to minimize that sum.
If you want to do this "the old-fashioned way," you would write the same "sum of squares" function and differentiate it with respect to m and b. Solve the simultaneous equations that make those derivatives zero. (My solver finds multiple solutions, so the neighborhood needs to be restricted in some way. For example m > 0, b > 0, or sum of squares < 1.)
Answer:
300
Step-by-step explanation:
60/30 is 2 and 2 times 150 is 300
Answer:
$40.5
Step-by-step explanation
10% comes from selling biscuit:$ 9
remaining money: $81
50% of the remaining money comes from chocolate cakes: 81*50%=$40.5
Answer:
a) 3.3352 inches.
b) 8.2648 inches.
Step-by-step explanation:
When the distribution is normal, we use the z-score formula.
In a set with mean 
and standard deviation 
, the zscore of a measure X is given by:
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
In this question:
A. What is the minimum head breadth that will fit the clientele?
This is the 2nd percentile, which is X when Z has a pvalue of 0.02. So X when Z = -2.054.
So the minimum head breadth that will fit the clientele is 3.3352 inches.
B. What is the maximum head breadth that will fit the clientele?
The 100-2 = 98th percentile, which is X when Z has a pvalue of 0.98. So X when Z = 2.054.
So the maximum head breadth that will fit the clientele is 8.2648 inches.
Answer:
Step-by-step explanation:
yes it a would equal c
