Answer:
a) 20%
b) 40%
c) Mean = 62.5 seconds; Variance = 52.083 seconds
Step-by-step explanation:
The time it takes a hematology cell counter to complete a test on a blood sample is continuously distributed over the period of 50 to 75 seconds with probability f(x) = 0.04.
a) The percentage of tests require more than 70 seconds is:
b)The percentage of tests that require less than one minute (60 seconds) is:
c) The mean and variance of a continuous distribution are determined by:
Mean = 62.5 seconds.
Variance = 52.083 seconds.
Answer:
One-third
Step-by-step explanation:
One-third (which is about 33.3%) is greater than 25%
Answer:
1.2 litres more water should Josie drink.
Step-by-step explanation:
As given
It is recommended that an adult drink 64 fluid ounces of water everyday .
As given
1 ounce = 0.0296 litre .
Now convert 64 ounces into litre.
64 ounce = 64 × 0.0296
= 1.9 litres (Approx)
As
1 litre = 1000 ml
Now convert 700 ml into litre.
700 ml = 0 .7 litre
Thus
Recommended amount of water a adult should drink = Amount of water Josie already consumed + More water should Josie drink.
Putting the value
1.9 litres = 0 .7 litres + More water should Josie drink.
More water should Josie drink = 1.9 - 0.7
More water should Josie drink = 1.2 litres .
Therefore 1.2 litres more water should Josie drink.
Answer:
1/6561
Step-by-step explanation:
3^-2 = 1/9
1/9^4 = 1/6561
