# statistics

posted by Ashley

The average scuba diver can stay under water for 42 minutes with a standard deviation of 8 minutes.(show graph)

B. what is the probabilty that a diver stays under for the less than 53 minutes?
c.what is the probabilty that a diver stays under between 25 and 50?

d. what is the probabilty that a diver stays under for more than 52 mintues?

e.find the cutoff number for the middle 50% of the time a diver stays down?

f.find the top 15% of time the diver stays down?

g. find the bottom 20%of the time a diver stays down?

## Similar Questions

The maximum time, T, in minutes, a scuba diver can rise without stopping for decompression on the way to the surface is modeled by the equation T (d) = 525/d-10 , d > 10, where d is the depth of the dive in metres. a) sketch a graph …
2. ### statistics

The average scuba diver can stay under water for 42 minutes with a standard deviation of 8 minutes, what is the probability that a diver stays under for more than 36 minutes
3. ### statistics

The average scuba diver can stay under water for 42 minutes with a standard deviation of 8 minutes.(show graph) B. what is the probabilty that a diver stays under for the less than 53 minutes?
4. ### statistics

The average scuba diver can stay under water for 42 minutes with a standard deviation of 8 minutes.(show graph) B. what is the probabilty that a diver stays under for the less than 53 minutes?

A sea cow can stay under water y minutes. This is 11 minutes longer than one - third the time of a hippopotamus can. Write an equation that states the relationship of the minutes these two mammals can stay under water. Complete the …
6. ### math

A scuba diver dove from the surface of the ocean to an elevation of -79 9/10 feet at a rate of -18.8 feet per minute. After spending 12.75 minutes at that elevation, the diver ascended to an elevation of -28 9/10 feet. The total time …
7. ### math

A scuba diver dove from the surface of the ocean to an elevation of -79 9/10 feet at a rate of -18.8 feet per minute. After spending 12.75 minutes at that elevation, the diver ascended to an elevation of -28 9/10 feet. The total time …
8. ### math

A scuba diver dove from the surface of the ocean to an elevation of −89 9 10 feet at a rate of −24 feet per minute. After spending 11.75 minutes at that elevation, the diver ascended to an elevation of −8 9 10 feet. The total …
9. ### math

A scuba diver dove from the surface of the ocean to an elevation of ÃƒÂ¢Ã‹â€ Ã¢â‚¬â„¢89 9 10 feet at a rate of ÃƒÂ¢Ã‹â€ Ã¢â‚¬â„¢24 feet per minute. After spending 11.75 minutes at that elevation, …
10. ### Math

A hippopotamus can stay under water for 15 minutes. A sea cow can stay under water y minutes. This is 11 minutes longer than one third the time a hippopotamus can. Write an equation and solve to determine how long the sea cow can stay …

More Similar Questions