Answer:
136.1 inches
Step-by-step explanation:
area of a circle is r^2 x pi
this is 3/4 of a circle
1. so 3/4 x 7.6^2xpi
2. 3/4 x 57.76 x pi
3. .75 x 57.76 x pi
4. 136.1
Answer:
If we divide that by 15 years, we get an annual yield of
$3,000 per year.
Step-by-step explanation:
welcome :)
Answer:
Do not have
More
Cell wall
Flagellum
Step-by-step explanation:
Answer:
b. A binomial variable with 25 independent trials
Step-by-step explanation:
The conducted experiment is binomial experiment because outcome can be divided into success or failure. The success would be the people who read novel in the past year and also responses are independent of each other. We have to find the number of trials n in the given problem.
we are given that variance of R=6 and p=probability of success=0.4.
We know that variance of binomial distribution is
Variance=npq
where q=1-p=1-0.4=0.6.
By putting the values in variance formula, we can get the value of n.
6=n*0.4*0.6
6=0.24*n
n=6/0.24
n=25
Hence, random variable R is a binomial variable with 25 independent trials.
To find the mean, add up all the test scores and divide by the number of tests:
524/10 = 52.4.
