A normal distribution has a mean of 60 and a standard deviation of 8. Find the fraction of scores that lie between 60 and 72.
What will be an ideal response?
0.4332
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Solve problems using a calculator.A painter charges $150 for two rooms and $260 for four rooms. Suppose a two-room job required painting 1152 square feet and a four-room job required painting 2950 square feet. Calculate the difference in cost per square foot between these two jobs. (Round to the nearest tenth of a cent, if necessary.)
A. $0.02 per square foot B. $0.04 per square foot C. $0.01 per square foot D. $0.03 per square foot
Write the sample space for the given experiment.A day of the week is selected at random
A. {1, 2, 3, 4, 5, 6, 7} B. {weekend, weekday} C. {Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday} D. 7
Find the general solution for the differential equation.
+ 2xy = 21x
A. y = 
+ 2x + Ce-x2
B. y = 
+ Ce-x2
C. y = 
+ Cex2
D. y = 21 + Cex2
Provide an appropriate response.Correct and explain the error that a student made when he added 0.23 + 3 + 90.3 this way: 
9 5.6
What will be an ideal response?