Question

The physical plant at the main campus of a large state
university recieves daily requests to replace florecent lightbulbs.
The distribution of the number of daily requests is bell-shaped and
has a mean of 53 and a standard deviation of 8. Using the
68-95-99.7 rule, what is the approximate percentage of lightbulb
replacement requests numbering between 45 and 53?

Answer #1

The physical plant at the main campus of a large state
university recieves daily requests to replace florecent lightbulbs.
The distribution of the number of daily requests is bell-shaped and
has a mean of 41 and a standard deviation of 10. Using the
68-95-99.7 rule, what is the approximate percentage of lightbulb
replacement requests numbering between 21 and 41?

The physical plant at the main campus of a large state
university recieves daily requests to replace florecent lightbulbs.
The distribution of the number of daily requests is bell-shaped and
has a mean of 62 and a standard deviation of 8. Using the
68-95-99.7 rule, what is the approximate percentage of lightbulb
replacement requests numbering between 54 and 62?

The physical plant at the main campus of a large state
university recieves daily requests to replace florecent lightbulbs.
The distribution of the number of daily requests is bell-shaped and
has a mean of 41 and a standard deviation of 5. Using the
68-95-99.7 rule, what is the approximate percentage of lightbulb
replacement requests numbering between 26 and 41?

The physical plant at the main campus of a large state
university recieves daily requests to replace florecent lightbulbs.
The distribution of the number of daily requests is bell-shaped and
has a mean of 43 and a standard deviation of 8. Using the
68-95-99.7 rule, what is the approximate percentage of lightbulb
replacement requests numbering between 19 and 43?

The physical plant at the main campus of a large state
university recieves daily requests to replace florecent lightbulbs.
The distribution of the number of daily requests is bell-shaped and
has a mean of 37 and a standard deviation of 7. Using the Empirical
Rule rule, what is the approximate percentage of lightbulb
replacement requests numbering between 37 and 58?

The physical plant at the main campus of a large state
university recieves daily requests to replace florecent lightbulbs.
The distribution of the number of daily requests is bell-shaped and
has a mean of 35 and a standard deviation of 3. Using the empirical
rule (as presented in the book), what is the approximate percentage
of lightbulb replacement requests numbering between 35 and
44?
ans = %

The physical plant at the main campus of a large state
university recieves daily requests to replace florecent lightbulbs.
The distribution of the number of daily requests is bell-shaped and
has a mean of 62 and a standard deviation of 4. Using the empirical
rule (as presented in the book), what is the approximate percentage
of lightbulb replacement requests numbering between 62 and 66?

The physical plant at the main campus of a large state
university recieves daily requests to replace florecent lightbulbs.
The distribution of the number of daily requests is bell-shaped and
has a mean of 64 and a standard deviation of 9. Using the Empirical
rule, what is the approximate percentage of lightbulb replacement
requests numbering between 64 and 73?
Do not enter the percent symbol.
ans = %

The physical plant at the main campus of a large state
university receives daily requests to replace fluorescent
lightbulbs. The distribution of the number of daily requests is
bell-shaped and has a mean of 51 and a standard deviation of 4.
Using the 68-95-99.7 rule, what is the approximate percentage of
lightbulb replacement requests numbering between 43 and 51? Answer
to the nearest tenth.
______ %

The maintenance department at the main campus of a large state
university receives daily requests to replace fluorecent
lightbulbs. The distribution of the number of daily requests is
bell-shaped and has a mean of 63 and a standard deviation of 5.
Using the 68-95-99.7 rule, what is the approximate percentage of
lightbulb replacement requests numbering between 53 and 63?

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