Consider a population consisting of 1,2,3,4 and 5. Suppose samples of size 3 are
drawn from this population.
Find (Z a/2)²
E
given each of the following
1. 90% confidence, E = 0.01
Suppose the time it takes a student to finish a quiz is uniformly distributed between six and 22 minutes, inclusive.
1) Find the value of a=
2) Find the value of b=
3) Find the value of h = 4 d.p.
4) Find the mean time to fix the furnance = up to 2 d.p.
5) Find the standard deviation time to fix the furnance = up to 2 d.p.
6) Find the probability P( x ≤ 19) = in %
For each nonnegative integer 𝑛, let 𝑈_𝑛 = {𝑛, −𝑛}. Find 𝑈_1 ( 𝑈 sub 1). *
Please help me with this question. Consider the surfaces in R^3 defined by the equations f(x,y)= 2 sqrt(x^2 + y^2) and g(x,y)= 1 + x^2 + y^2. (a) what shapes are described by f,g and their intersection?. (b) Give a parametric equation describing the intersection
12 students are to pose for photographs after a social gathering at FCT. 4 students are from Lagos state, 3 are from Kano state and the remaining are from Kwara state. How many possible photographs can they take if students from the same state must stand close to one another?
In how many ways can a family of six be seated on a bench if the parents must sit at both ends?
A committee of 4 men and 6 women is to be selected from 7 men and 8 women. If there is a married couple among the 15 people, in how many ways can the committee be selected so that the couple are automatically in the committee?
In how many ways can 6 people be seated for group photographs if there are only 4 seats?
12 jobseekers applied for 3 available vacant positions in a company. In how many ways can the job be offered among these applicants if a particular applicant must be employed?