At one high school, students can run the 100-yard dash in an average of 15.2 seconds with a standard deviation of 0.9 seconds. The times are very closely approximated by a normal curve. Find the percent of times that are:Less than 15.2 seconds
A. 34%
B. 68%
C. 50%
D. 16%
Answer: C
You might also like to view...
Write the first five terms of the sequence defined recursively. Use the pattern to write the nth term of the sequence as a function of n.
a. 
b. 
c. 
d. 
Tell whether correlation is being used correctly. Identify any statistical errors.A researcher reports that a high correlation has been found between SAT scores and the number of games of golf played in the year prior to the SAT. Jeff decides to play a lot of golf before taking the SAT in order to improve his chances of getting a high score.
What will be an ideal response?
Find the sum.
A. 2831 B. 2660 C. 2584 D. 2964
Set up the percent proportion for the application problem. Do not try to solve for any unknowns.In one state, the sales tax is 6%. On one purchase, the tax was $55. Find the cost of the item purchased.
A. 
= 
B. 
= 
C. 
= 
D. 
= 