On Saturday, Murphy biked x miles. On Sunday, he biked 3 times as far as he did on Saturday. His total distance biked for both d
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Answer:
Step-by-step explanation:
We have been given that in a population of exam scores, a score of x=48 corresponds to z=+1.00 and a score of x=36 corresponds to z=-0.05.
To find the values of mean and standard deviation, we will use z-score formula as:
Let us solve for x (sample score).
Upon substituting our given values, we will get two equations as:
Upon substituting equation (1) in equation (2), we will get:
Therefore, the mean of the given data would be approximately 36.57.
Upon substituting in equation (1), we will get:
Therefore, the standard deviation for the given data would be approximately 11.43.