Answer:
C. 37 miles
Step-by-step explanation:
0.50 + 1.50 = 20
         -1.50     -1.50
0.50 = 18.50
18.50 / 0.50 = 37
 
        
             
        
        
        
Answer:
see below
Step-by-step explanation:
1) 4
2) 1 or -1
 
        
             
        
        
        
Answer: https://www.bing.com/search?q=https%3A%2F%2Fwww.chegg.com%2Fhomework-help%2Fquestions-and...%0A&form=IPRV10
Step-by-step explanation: There you will find your answer
 
        
             
        
        
        
Answer:
22.86% probability that the persons IQ is between 110 and 130
Step-by-step explanation:
Problems of normally distributed samples are solved using the z-score formula.
In a set with mean  and standard deviation
 and standard deviation  , the zscore of a measure X is given by:
, 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 problem, we have that:

If one person is randomly selected what is the probability that the persons IQ is between 110 and 130
This is the pvalue of Z when X = 130 subtracted by the pvalue of Z when X = 110.
X = 130



 has a pvalue of 0.9772
 has a pvalue of 0.9772
X = 110



 has a pvalue of 0.7486
 has a pvalue of 0.7486
0.9772 - 0.7486 = 0.2286
22.86% probability that the persons IQ is between 110 and 130
 
        
             
        
        
        
Is 16.2 because 3 goes in to 
48.6 16.2 times