Essay
The results of a survey showed that, on average, children spend 5.6 hours at PlayStation per week. Suppose that the standard deviation is 1.7 hours and that the number of hours at PlayStation follows a bell-shaped distribution.
a. Use the empirical rule to calculate the percentage of children who spend between 2.2 and 9 hours at PlayStation per week.
b. What is the z-value for a child who spends 7.5 hours at PlayStation per week?
c. What is the z-value for a child who spends 4.5 hours at PlayStation per week?
Correct Answer:
Verified
a. According to the empirical rule, ap...View Answer
Unlock this answer now
Get Access to more Verified Answers free of charge
Correct Answer:
Verified
a. According to the empirical rule, ap...
View Answer
Unlock this answer now
Get Access to more Verified Answers free of charge
Q3: Compute the geometric mean for the following
Q38: Data collected from several entities over a
Q43: Compute the IQR for the following data.
Q52: The variance is based on the<br>A)deviation about
Q62: The goal regarding using an appropriate number
Q70: The College Board reported that, in 2014,
Q71: The mentor of a class researched
Q72: The difference between the largest and the
Q77: Compute the relative frequencies for students
Q78: James's manager asked him to sort