Answer:
3/32
Step-by-step explanation:
Given
1/2 x 3/16
Multiply through
3/32
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.
Answer:
$344.79
Step-by-step explanation:
379.99 decrease 15% =
379.99 × (1 - 15%) = 379.99 × (1 - 0.15) = 322.9915
322.9915 increase 6.75% =
322.9915 × (1 + 6.75%) = 322.9915 × (1 + 0.0675) = 344.79342625
<h2>
Answer:</h2><h2>
The city population last year = 2233 approximately</h2>
Step-by-step explanation:
The current population of the city = 245,600
Rate of increase = 110 %
The population in previous year = ?
Let x be the population of previous year
x(110%) = 245600
x = ![\frac{245600}{110}](https://tex.z-dn.net/?f=%5Cfrac%7B245600%7D%7B110%7D)
= 2232.7
The city population last year = 2233 approximately