Answer:
680
Step-by-step explanation:
Answer:
third one
Step-by-step explanation:
area = pi * R^2 = pi * 1^2 = pi ft^2
Answer:
The approximate probability of getting 100000 views or more in January if we assume view counts from day-to-day are independent = 0.22254
Step-by-step explanation:
January has 31 days.
The average number of views per day = 3022 views per day.
In terms of hourly basis, the average number of views = 3022/24 ≈ 126 views per hour
Then we need to find the probability that the number of views in January is equal to or exceeds 100000.
100000 views in January = 100000/31 = 3225.81 ≈ 3226 views per day
On an hourly basis, 3226 views per day ≈ 135 views per hour.
So, mean = λ = 126 views per hour
x = 135 views per hour.
Using Poisson's distribution function
P(X = x) = (e^-λ)(λˣ)/x!
P(X ≥ x) = Σ (e^-λ)(λˣ)/x! (Summation From x to the end of the distribution)
But it's easier to obtain
P(X < x) = Σ (e^-λ)(λˣ)/x! (Summation From 0 to x)
P(X ≥ x) = 1 - P (X < x)
Putting λ = 126 views/hour and x = 135 views/hour in the Poisson distribution formula calculator
P(X ≥ 135) = 0.22254
Answer:
See below in bold.
Step-by-step explanation:
There are 2 even and 6 odd numbers in the list.
A.
Prob(Picking an odd number) = number of odd numbers / total of numbers
= 6/8 = 0.75.
Prob(Picking a 10) = 1/8 = 0.125.
Answer = 0.75 * 0.125 = 0.09375
= 0.094 to 3 dec. places.
B.
Prob( Picking and even) = 2/8 = 1/4.
Prob( Picking another even without replacement) = 1/7.
Answer = 1/4 * 1/7 = 1/28
= 0.036 to 3 dec. places.
C.
There are 5 numbers greater than 4.
Prob(Picking a number > 4) = 5/8.
Prob( Picking a 1 without replacement) = 1/7.
Answer = 5/8 * 1/7
= 5/56
= 0.089 to 3 dec. places.
