The following table shows some information about the lifetimes, t, (in hours) of 50
lightbulbs.
frequency
7.
lifetime, t (hours)
0 50 100 < t s 150
150 5
200 250 how many lightbulbs have a lifetime of 100 hours or less?

Thomas hiked 6 miles on monday 10 miles on tuesday and 8 miles on wednesday. what is the mean value closesst to the mean number of miles over the tree day period?

Shiny white dental insurance costs $258 per year. approximately one-third of insured people need a filling, which averages $110 each. 80% of insured people get a preventive check-up each year, and the average cost of this visit is $95. if you consider shiny white’s income and expenses, what is the expected value of each insured customer?

Collin did the work to see if 10 is a solution to the equation r/4=2.4